Answer:
lots of carbon dioxide and cold temperatures
Explanation:
Calcium carbonate has low solubility at room temperature and the solubility increases as the temperature decreases. The solubility of calcium carbonate also increases in water with high level of carbon dioxide due to the formation of more soluble bicarbonate.
[tex]CaCO_3_{(s)} + CO_2_{(g)} + H_2O_{(l)} --> Ca(HCO_3)_2_{(aq)}[/tex]
This is why carbon dioxide rich rainwater is able to erode limestone rocks, leading to the formation of caves, stalactites and other structures in the long run as a result of reversal of the process.
Calcium carbonate is most likely to dissolve in water that is rich in carbon dioxide and has cold temperatures. This is because CO2 reacts with water to form carbonic acid, which can then react with CaCO3 to increase its solubility.
Explanation:Calcium carbonate, CaCO3, is more likely to dissolve in water with characteristics of having lots of carbon dioxide and cold temperatures. Due to its solubility product, Ksp, we know that the solubility increases as the pH decreases (i.e., as acidity increases). The presence of carbon dioxide, CO2, in water leads to the formation of carbonic acid, which results in the following reaction:
H₂O + CO₂ = H₂CO₃
CaCO3 + H₂CO₃ = Ca²+ + 2HCO3⁻
This reaction shows that as carbonic acid is present, calcium carbonate's solubility increases because it reacts with the acid to form more soluble compounds. In natural waters that contain dissolved CO2, the solubility of CaCO3 is enhanced due to the formation of hydrogen carbonate salts. Therefore, waters that are acidic and rich in CO2 are more likely to dissolve calcium carbonate
Cilia and flagella are projections extending ____________ the cell. Projections extending from the cell that are usually found in cells in the respiratory passageways are ____________ . Projections extending from the cell that usually appear alone and help propel an entire cell are ____________ . The only example of a cell with a flagellum is ____________ .
Answer:
Cilia and flagella are projections extending from the cell.
Projections extending from the cell that are usually found in cells in the respiratory passageways are cilia .
Projections extending from the cell that usually appear alone and help propel an entire cell are flagella.
The only example of a cell with a flagellum is sperm/bacteria cell.
Explanation:
Cilia are organelles which are present in eukaryotic organisms which protrude outwards from the cell. They are of two types- Motile and Non Motile. The non motile cilia cannot move and have a role in sensory function. The cilia are present outside the respiratory tract and help flush microbes and debris out of the passage way.
Flagellum or flagella help in the locomotion many bacteria and eukaryotes. These are filamentous protein structures which come out of the cell body. Few examples of organisms having flagella is bacteria and in eukaryotes it is the sperm cell.
Answer:
Cilia and flagella are projections extending --from the cell. Projections extending from the cell that are usually found in cells in the respiratory passageways are --cilia . Projections extending from the cell that usually appear alone and help propel an entire cell are --flagella . The only example of a cell with a flagellum is --euglena .
Imagine that twins are separated at birth. One is raised speaking only English, whereas the other is raised in a bilingual household and speaks both English and Spanish. Years later, the twins meet and decide to learn French together. The bilingual twin has a remarkably easy time learning French, whereas the other twin struggles. This difference may be explained by
a. codominance.
b. incomplete dominance.
c. multiple-allele inheritance.
d. multifactorial inheritance.
e. polygenic inheritance.
Answer:
d. multifactorial inheritance.
Explanation:
Multifactorial inheritance also called "many factors" inheritance are involved in causing a birth defect or aftermath effect after birth. The factors are usually both genetic and environmental, where a combination of genes from both parents, in addition to unknown environmental factors, produce the trait or condition in an offspring.
In the case of the twins who was raised speaking only English, it was due to influence of environmental factors, had it been he/she was introduced to speaking English and french like the other twin raised from the bilingual household, it would have been easier for him/her learning French.
The difference in ease of language learning between the twins is best explained by d. multifactorial inheritance, which encompasses both genetic and environmental influences on complex traits, such as language acquisition skills.
The correct option that explains the ease of the bilingual twin in learning French compared to the other twin is d. multifactorial inheritance. This term refers to traits that are conditioned by a combination of multiple genes and environmental factors, as opposed to a single gene. In this case, the ease of learning a new language like French could be influenced by the brain's flexibility and linguistic structures developed during childhood, which might be more pronounced in individuals exposed to multiple languages at a young age.
In the field of genetics, variants like codominance and incomplete dominance relate to how specific alleles are expressed in an organism. Codominance occurs when both alleles for the same characteristic are equally expressed, such as in human MN blood groups. Incomplete dominance occurs when an intermediate phenotype is displayed, different from either homozygous phenotype. None of these strictly genetic phenomena directly explain the acquisition of language skills as described in the scenario. Therefore, learning a new language is not influenced by these genetic dominance patterns but rather by a complex mix of biological and environmental factors.
What is the idea developed by Charles Lyell stating that the geologic processes that shaped Earth in the past continue to operate today?
a. inheritance of acquired characteristics
b. catastrophism
c. uniformitarianism
d. descent with modification
Answer:
c. uniformitarianism
Explanation:
Uniformitarianism is a doctrine that was popularized by Charles Lyell in his book published in 1830. It is a school of thought that belief that slow, uniform geologic processes shaped the earth in the past and the processes are still in operation as of today. In other word, the past processes that shaped the earth can still be studied in the present.
The idea is in contrast to catatrophism, a belief that the present earth is shaped by sudden, short violent occurrence as compared to the past.
Descent with modification and inheritance of acquired character are related to evolution of living organisms.
The correct option is c.
Vascular endothelial growth factor (abbreviated VEGF and pronounced "Veg-F") is a peptide signaling molecule related to platelet-derived growth factor. VEGF is important in the formation of the circulatory system because its signaling pathway causes the formation of blood vessels in developing embryos during normal development. Tumors also produce and secrete VEGF, causing nearby blood vessels to branch and grow to form new blood vessels that supply these tumors.
Given what you know about the different kinds of cell signaling and VEGF, which statement is true?
VEGF is a paracrine signaling molecule because it binds to receptors on nearby cells, at the site where new blood vessels are needed.
Answer:
VEGF is a paracrine signaling molecule because it binds to receptors on nearby cells, at the site where new blood vessels are needed.
Explanation:
The platelet derived growth factors utilizes VEGF (Vascular endothelial growth factor) as a signalling molecule. Cell communication between close cells are aided by Paracrine signalling such as VEGF which forms new blood vessels to its close cells by binding with the receptors
How can a person stay healthy as an older adult? Choose exactly 3 answers that are correct.
A. Spend time with others.
B. Eat healthy.
C. Get regular medical care.
D. Exercise less.
Hey there!
The correct 3 answers are A. Spend time with others, B. Eat healthy and C. Get regular medical care
Hope this helps you!
God bless ❤️
xXxGolferGirlxXx
If a strand of DNA is GCGAGA what is the complementary mRNA code?
a. CGCTCT
b. TATGCG
c. CGCUCU
d. CCCUUU
Answer:
C.
Explanation:
G is C
C is G
A is U
U is A
in mRNA U is with A
"What is a microorganism [a microbe] that is innocuous [not harmful] to man or to a given animal species? It is a living being which does not possess the capacity to multiply in our body or in the body of the animal. But nothing proves that if the same microorganism should chance to come into contact with some other of the thousands of animal species in the Creation, it might invade it and render it sick. Its virulence might increase by repeated passages through that species, and might eventually affect man or domesticated animals." —Louis Pasteur
What is a reasonable inference to draw from this quote by Louis Pasteur?
Answer:
Bacteria can change and mutate with time and can become virulent from avirulent species.
Explanation:
If a bacteria is considered harmless or avirulent, then the bacteria will not necessarily affect the animal species.
But when the species come into contact with other sick species caused by the microbe will make the bacteria virulent. This shows that bacteria can change with time, depending on the environment it is living in.
A microorganism can mutate or change with time and can become virulent.
Thus we can draw this conclusion, bacteria can change and mutate with time and can become virulent from avirulent species.
Adjacent plant cells have narrow channels called plasmodesmata that pass through the cell walls of the connected cells and allow a cytoplasmic connection between the cells.
Which of the following statements best describes a primary function of plasmodesmata?
1. They allow the movement of molecules from one cell to another, enabling communication between cells.
2. They prevent the cell membrane from pulling away from the cell wall during periods of drought.
3. They eliminate the need to produce signaling molecules and eliminate the need for cells to have receptors for signaling molecules.
4. They increase the surface area available for attachment of ribosomes and thus increase protein synthesis.
Answer:1. They allow the movement of molecules from one cell to another, enabling communication between cells.
Explanation:the cell wall is a rigid and cellulose containing wall, which surrounds the plasma membrane.
During lignification, small pores appear on the cell wall through which cytoplasmic strands extend.these pores are the plasmodesmata,which provides connections between plant cells
Answer:
A
Explanation:
Plant cells are encompassed in cell walls that form the plant skeletal structure. However, the presence of abundant extracellular cell wall material means that plant cells physically do not touch. To enable intercellular communication, plants have evolved cytoplasmic bridges, called plasmodesmata (Sing- Plasmodesma) that links the fluid cytoplasm between adjacent cells. The plasma membrane of one plant cell is continuous with that of its neighbour at each plasmodesma.
A Plasmodesma (Plural- Plasmodesmata) is a narrow channel through the plant cell wall that acts as intercellular cytoplasmic bridges to bring about communication and transport of materials between plant cells. Plasmodesmata form an important route for communication between plant cells, allowing molecules to pass directly from cell to cell.
The plasmodesmata separate the outer cell membranes of the plant cells. The actual air space separating the cells is called the desmotubule.
An 8-month-old infant is eating and suddenly begins to cough. The infant is unable to make any noise shortly after. You pick up the infant and shout for help.Which action do you perform to relieve choking in an unresponsive infant?
Answer:
The five-and-five first aid action recommended by the red cross
Explanation:
When an infant is choking and becomes unresponsive, the five-and-five approach is recommended as a first aid treatment to dislodge the material blocking the airway.
The five-and-five action involves alternation between giving the subject five back blows and five abdominal thrusts until the the choking material is dislodged or the subject becomes unconscious.
If the infant becomes unconscious, CPR should be performed and further help should be sought.
Answer:
5 back hits/slaps, and then 5 chest thrusts
Explanation:
Which phase of the bacterial growth curve, involves more cells dying than reproducing?
Answer: Death phase
Explanation:
The bacterial growth curve involves many stages named as lag, log stationary and decline.
The lag stage is where the nutrients are supplied for the growth of the bacterial species.
The log phase is where the the bacteria grow along with the nutrients available.
The stationary phase can be defined as the phase the death rate and the generation rate is same.
The death phase can be defined as the phase where the number of dying bacteria is more than the number of generation of bacteria because of the depletion of nutrients.
Thirty-six colonies grew in nutrient agar from 0.1 ml of undiluted sample in a standard plate count. How many viable and culturable cells were in the original sample?
Final answer:
To calculate the concentration of viable and culturable cells in the original sample, divide the number of colonies by the volume of the sample plated. In this case, with thirty-six colonies from 0.1 ml, the concentration is 360 CFU/mL.
Explanation:
The question given by the student involves calculating the concentration of viable and culturable cells in an original sample using the standard plate count technique in microbiology. When the student mentioned that thirty-six colonies grew from a 0.1 ml undiluted sample, the concentration of cells can be calculated using the formula:
(of colonies counted on the petri plate) ÷ (amount of diluted sample added to the petri plate in mL) = CFU in diluted sample (cells/mL)
So, for the given question, the calculation would be:
36 colonies / 0.1 mL = 360 colonies per mL (CFU/mL)
Therefore, the concentration of viable and culturable cells in the original undiluted sample is 360 CFU per mL.
Will's coworkers go out to lunch every day, and they often ask Will to join them. However, Will always refuses because he is terrified of having others watch him eat. He worries that he will embarrass himself in front of his coworkers and they won't like him any longer. Will most likely will be diagnosed with __________________________.
Answer:
The correct answer is - social phobia.
Explanation:
A social phobia is a feature of the anxiety of social judgment, or being negatively judged or evaluated or rejected by the performance or social situation.
It is the social anxiety disorder which leads to embarrassment to do the certain activity so he would not have deal with the embarrassment or judgement. Will most likely will be diagnosed with social phobia.
Thus, the correct answer - social phobia.
Which of the following choices lists the ways that you can show intellectual honesty in scientific communication.
a) Do not let your personal beliefs interfere with the truth; do not omit facts even if they contradict your hypothesis or your goals; avoid bias; do not make up data; do not plagiarize; give credit to others if you cite their work.
b) Use your personal beliefs to draw your conclusions; make up data to fit the desired results; omit data when necessary; only give credit to others sometimes.
c) Only experiments that fit your original hypothesis should be communicated; cite some of the work you used; data can be left out if needed to fit the hypothesis.
d) It is not important to show intellectual honesty in scientific communication.
Answer:
The correct option is A) Do not let your personal beliefs interfere with the truth; do not omit facts even if they contradict your hypothesis or your goals; avoid bias; do not make up data; do not plagiarize; give credit to others if you cite their work.
Explanation:
Ethics and scientific research go hand in hand. If intellectual honesty and ethics are not maintained during scientific research, then this field could raise many ethical concerns.
Modifications in results are strictly against ethics during scientific research. A scientist should never try to manipulate the results so that it supports their hypothesis. Cheating or stealing other peoples work is also not acceptable in the scientific world. A scientist should always be modest.
The ara operon is an inducible operon that controls the production of the sugar arabinose. When arabinose is present in a bacterium it binds to the protein AraC, and the complex binds to the initiator site to promote transcription. In this scenario, AraC is a(n)
Answer:
When AraC binds to arabinose to initiate the process of transcription, then AraC is acting as an Activator.
Explanation:
Transcription is a process that help to produce messenger RNA from the DNA that is present in the nuceloids of bacteria cells. The production of these mRNA however, depends on the intracellular condition of the bacteria, for example, if there is a need for the protein coded for by the segment or not. In the case of this bacterium, the AraC can act as a repressor only when there is no arabinose sugar in the cell. In the scenario above, AraC will act as an activator because of the presence of the sugar arabinose.
Answer:
Activator
Explanation:
Impulses originating in the part of the brain called the medulla would most directly affect which body structure?
The question is incomplete. The complete question is:
Question: Impulses originating in the part of the brain called the medulla would most directly affect which body structure?
a. A leg muscle
b. A ligament
c. An arm bone
d. The heart
Answer:
d. The heart
Explanation:
The medulla oblongata contains a number of reflex centers for regulating vital body functions such as heartbeat, breathing, and vasoconstriction. The medulla contains several nuclei, a collection of neuronal cell bodies.
For example, impulses originated in the cardiovascular center regulates the rate and force of the heartbeat and the diameter of blood vessels. Impulses from the cardiovascular center flow along sympathetic and parasympathetic neurons. An increase in sympathetic stimulation from the cardiovascular center of medulla increases heart rate and contractility while a decrease in sympathetic stimulation decreases heart rate and contractility.
Which human excretory structure aids in the maintenance of normal body temperature?
(1) sweat gland.
(2) liver.
(3) nephron.
(4) urinary bladder.
Answer:
Sweat glands
Explanation:
Humans sweat to cool down their bodies after an excess workout or activity.
The sweat gland aids in the maintenance of normal body temperature.
What is sweat gland?Sudoriferous or sudoriferous glands are other names for sweat glands.
The skin contains tiny, tubular structures called sweat glands. Sweat is created by sweat glands. They belong to the exocrine gland family.
What are types of sweat glands?Sweat glands come in two primary categories:
Nearly every part of the body contains eccrine glands. The palms and soles have the highest concentration of eccrine glands. All around the body, they are of varying densities.The majority of apocrine glands in the human body are located in the perineum and armpits. In humans, apocrine glands are not used for thermoregulation. In animals with hooves, such as cows, horses, camels, and donkeys, apocrine glands aid in thermoregulation.Thus, we can conclude option A is correct.
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What term refers to an abnormal condition of all or part of the body that makes the body incapable of carrying on normal function?
Answer:disease
Explanation:disease is a deviation of the normal function of the body.
This is evident to due abnormal physiological functioning of the body thereby causing symptoms of the disease.the organs system,organs, tissues and cells can no longer carry out their activities in the body.
A disease can be caused by microorganisms such as bacteria or virus.disease which are contagious can also be contacted from a sick person.
The Susquehanna River, which runs through the states of New York, Pennsylvania, an Maryland , received the title- America's most Endangered River in a 2005. One of the rivers problem's results from the large number of sewage overflow sites that are found along the course of the river. These sewage overflow sites are a direct result of an increase in human population. What effect do you predict this will have on the biodiversity on the river ecosystem?
Final answer:
Increased sewage overflow along the Susquehanna River due to human population growth is expected to negatively impact the river's biodiversity, creating dead zones and disrupting the ecosystem similar to the decline witnessed in the Chesapeake Bay and other altered U.S. river systems. Damming and habitat modification have been shown to reduce fish and amphibian populations by altering natural flow and habitat access.
Explanation:
The Susquehanna River, titled America's most Endangered River in 2005, has been impacted by sewage overflow sites resulting from increased human population. This situation is likely to have significant negative effects on the river's biodiversity. Increased sewage can lead to nutrient overload in the water, which may result in algal blooms that deplete oxygen levels, creating dead zones that are not suitable for many aquatic organisms. Additionally, the introduction of pathogens and chemicals from sewage can directly harm wildlife and disrupt the river ecosystem. Comparatively, the decline of the Chesapeake Bay ecosystem, largely due to nutrient runoff, is a case study of the complex issues arising from human activities affecting aquatic ecosystems. The decline of fish species due to habitat loss and modifications, such as damming, overwhelmingly impacts biodiversity, as it interferes with the flow regimes and access to the river, which many species are adapted to. Amphibians, which rely on both aquatic and terrestrial habitats, are at a greater risk due to loss of habitat or access between habitats.
According to the lecture, hormone changes are often responsible for mood swings in teenagers.
A) True
B) False
Answer:
True
Explanation:
Hormonal shifts can be a cause for mood swings, during teenage years the teens will experiment the production of estrogen (girls) and testosterone (boys) that will cause physical and emotional changes, as the time pass by these mood swing normally become less common as hormones reach an equilibrium.
I hope you find this information useful and interesting! Good luck!
Answer:
True
Explanation:
I got a 100 on the quiz
Describe compliance with public health statutes:
(a) communicable diseases
(b) abuse, neglect, and exploitation
(c) wounds of violence
Compliance with public health statutes involves following regulations and guidelines to prevent the spread of communicable diseases, protect against abuse and neglect, and address wounds of violence.
Explanation:Compliance with public health statutes:
Compliance with public health statutes regarding communicable diseases involves following regulations and guidelines set by the government to prevent the spread of contagious illnesses. This may include reporting cases of communicable diseases, implementing quarantine measures, and promoting vaccination.
Compliance with public health statutes regarding abuse, neglect, and exploitation involves ensuring the protection and well-being of vulnerable individuals, such as children, elderly, or individuals with disabilities. It includes reporting suspected cases, providing necessary support and intervention, and promoting awareness and prevention.
Compliance with public health statutes regarding wounds of violence involves addressing the physical and psychological trauma caused by violent acts. This may include providing immediate medical care, documenting injuries, offering support services, and collaborating with law enforcement in the investigation and prosecution of the perpetrators.
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British authorities based their colonial commercial policies on the theory of ________.
A) feudalism
B) laissez-faire
C) mercantilism
D) federalism
E) republicanism
Answer: British authorities based their colonial commercial policies on the theory of MERCANTILISM.
Explanation: Mercantilism is the system whereby a country amass wealth for itself at the expense of another country. The prosperity of a nation depends upon its supply of capital, and that the global volume of trade is unchangeable. This is done by increasing export significantly and reducing imports. It was used by the British to significantly amass wealth by importing commodities to Africa in exchange for gold and other precious metals.
What kind of policies should be put in place in order to help decrease our negative impact on the environment?
Answer:
The kind of policies should be put in place in order to help decrease our negative impact on the environment are, tax, Subsidy, pollution permits, regulation, changing consumer behavior.
Explanation:
The government should enact policies like putting carbon tax, which will make people pay for the social cost for the pollution. Subsidy for the use of alternative source of energy, this will reduce the pollution and on other hand will also attract more people towards it. Pollution permit i.e. carbon trading scheme in which firms were given right to pollute up to certain limit, these types of permits were traded with the other firms. Proper regulations for amount of pollutants which can release in to the surrounding. Changing the behavior of the consumer is very important as well, this can be achieved by several advertisement and nudges.
High concentrations of solutes such as sugar or salt results in plasmolysis of cells due to the onset of which phenomenon. Select one: a. Cavitation b. High osmotic pressure c. Ultrahigh temperature d. Low lyophilization
Answer:
The correct answer will be option-B
Explanation:
Three types of solution are formed based on the concentration of the solute which are:
1. High solute concentration- Hypertonic solution
2. Low solute concentration- Hypotonic solution
3. Equal solute concentration- Isotonic solution
When a cell contains a high amount of solute concentration and low concentration of water then it results in the generation of very high osmotic pressure.
If a cell is placed in an aquatic medium then due to high osmotic potential, the water will enter the cell which will lead to the rupture of the cell membrane. This process of rupture of the cell membrane is known as the plasmolysis.
Since the cell rupture due to the generation of very high osmotic potential, therefore, is the correct answer.
A clinical finding that is consistent with a diagnosis of adrenocortical insufficiency is:________.
Answer: Hyponatremia(low serum sodium level)
Explanation:
This is a condition where the sodium serum Level drops to less than 136mEqL.Sodium regulates electrolyte water balance of the body by regulating the amount of water that enter the cells.Therefore when it level drops water concentration rises increasing the water potential surrounding the cells(extracellular) but not of the intacellular fluids
.Less water is reabsorbed in the proximal convoluted tubule(PCT) of tthe Nephon. Since low sodium is available little will be reabsorbed by the PCT for reabsorption of water.
it is cause by liver diseases,diarrhoea, intake of large or too much water,hormonal imbalances etc
Symptoms
Headache, confusion, nausea, vomiting.and coma.
Treatment.
Controlled or moderate water intake
Treatment of related diseases.
Necessary precautions during intense activities.
The ability of a muscle group to perform repeated contractions over a period of time sufficient to cause muscular fatigue or to maintain a specific percentage of maximum voluntary contraction for a prolonged period of time is called what?
Answer:
Muscle endurance
Explanation:
Muscular endurance is the ability of a muscle or collections of muscles to satiate or endure repeated contractions against a resistance for an extended period of time. It is one of the components of muscular contractions, muscular fitness, along with muscular strength and power.
During exercise or training fitness , muscular endurance implies to the number of repetitions of a single exercise you can underg without needing to stop and rest.
A woman with a long history of rectocele and perineal scarring from multiple episiotomies develops a rectovaginal fistula with perineal body relaxation. She has transperineal repair with perineal body reconstruction and plication of the levator muscles. What are the CPT® and ICD-10-CM codes reported for this procedure?
Answer:
N82.3
N90.89
Explanation:
In this case, the patient has a history(not current) of the rectocele
The first diagnosis is rectovaginal fistula(Alphabetic Index for Fistula/rectovaginal is N82.3).
The second diagnosis isperineal scarring(Alphabetic Index for Scar, scarring/vulva is N90.89)
Therefore, code N81.6 won't be reported since it's stands for a current rectocele
The CPT and ICD-10-CM codes for transperineal repair, perineal body reconstruction, and plication of levator muscles for a rectovaginal fistula depend on the specific clinical details and should be assigned based on current coding guidelines and manuals.
The transperineal repair with perineal body reconstruction and plication of the levator muscles in a woman with a rectovaginal fistula is a complex procedure that addresses complications arising from obstetric trauma, such as a long history of rectocele and perineal scarring from multiple episiotomies. The CPT (Current Procedural Terminology) and ICD-10-CM (International Classification of Diseases, 10th Revision, Clinical Modification) codes for reporting these medical services are essential for billing and documentation purposes. Due to the complex nature of the procedure and the specific clinical details provided, the precise codes would depend on the individual case and the provider's clinical judgment. However, typically procedures like this could be coded under CPT codes for repair of rectocele and rectovaginal fistula and the proper ICD-10-CM codes denoting the presence of a fistula and related conditions. It would be advisable to consult the latest CPT and ICD-10-CM manuals or coding guidelines to ensure accurate coding.
When Allison was completing her medical forms in the doctor's office, she was asked to indicate her race. What may be an appropriate reason for including the question on the forms?
Answer: Strong links between race and health
Explanation:
Certain medical conditions like SICKLE CELL ANEMIA have been confirmed to be prevalent among people of AFRICAN descent.
Also, CYSTIC FIBROSIS have been known to be common among people of EUROPEAN race.
Therefore, Allison is required to include her race in the medical forms SO AS TO reveal any strong links her race has to do with her health
Proteins denature at low pH. What characteristic of acidic environments interferes with protein folding?
A. The lack of protons in the solution breaks covalent bonds in the protein
B. The excess protons in the solution break covalent bonds in the protein
C. The lack of protons in the solution breaks hydrogen bonds in the protein
D. The excess protons in the solution break hydrogen bonds in the protein
Answer: D. The excess protons in the solution breaks hydrogen bonds in the protein
Explanation: When adding acid it adds protons so it messes with the charges causing them to unfold.
The characteristic that interferes with protein folding in an acidic environment is D. The excess protons in the solution break hydrogen bonds in the protein.
Proteins are chains of amino acids with side chains. They fold due to the interaction between the hydrogens, which form hydrogen bonds. The denature occurs when the chain is unfolded.
Low pH means:
There is an excess of protons.The pH is below 7.The excess of protons interacts with the hydrogens that form the hydrogen bonds. As a consequence, the protein unfolds and losses its function.
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The IUCN's Red List is ________.a. a list of ecologically harmful invasive speciesb. a list of unidentified speciesc. a scorecard of international failures at conservationd. an updated list of species facing unusually high risk of extinctionan identification list of known species
Answer:
An updated list of species facing unusually high risk of extinction.
Explanation:
The IUCN red list of threatened species also called as red data list. It is defined as the most comprehensive global conversation status of both animals and plants species.
The IUCN is a criteria to identify the extinction risk of lots of biological subspecies, and species. These criteria are relevant to all regions of the word, and all the biological species.
explain how the carrying capacity affects the number of predators in an area biology regents?
Answer:
Carrying capacity of an ecosystem defines that for a limited supply of food or organism consumed by predators, only a limited number of predators can survive.
Explanation:
The carrying capacity of any ecosystem determines the number of species including the predators that can thrive in this ecosystem thereby availing an adequate supply of food and other essential resources.
Therefore, the carrying capacity limits the population of predators in a given ecosystem. This is because for a limited supply of food or organism consumed by predators, only a limited number of predators can survive. If the population of predators becomes very large and in lieu to that not enough resources are available then the population of both the predator and its prey will decrease.