True or False? The current growth associated with the human population places pressure on resources and social organization.
Which of the following is a pseudocoelomate?
1.Fish
2.Shrimp
3.Roundworm
4.All Of The Above
Answer: 3.Roundworm
Explanation:
Pseudocoelomate animals which have a fluid filled body cavity. The tissues in these organisms are derived from the mesoderm. These organisms lack a circulatory system, lack a endothelial lining of a coelom. The hydrostatic pressure build inside the fluid body cavity is responsible for giving a body supportive framework that gives a skeletonic structure to the animal. Example of these organisms includes the nematodes or roundworms.
A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population every six months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But during one six-month period, an event occurred that affected the population, and when the scientist returned, the amount of genetic variation had decreased significantly. Which of the following is most likely the event that occurred to change the population? Yellowstone National Park expanded its borders. A population of wolves was introduced into Yellowstone National Park. The amount of disease in the deer population decreased. More grass and shrubs were planted in Yellowstone National Park.
A lipid is any substance of biochemical origin that is
A lipid is any substance of biochemical origin that is insoluble in non polar solvent.
What are lipids?The fundamental units of the composition and operation of living cells are lipid molecules, which are hydrocarbon-containing molecules. Lipids contain things like fats, oils, waxes, some vitamins (including A, D, E, and K), hormones, and the majority of the cell membrane that isn't protein.
Since lipids are non-polar, they cannot dissolve in water but can do so in non-polar solvents like chloroform.
When metabolized, the hydrocarbons in lipids oxidize to release significant amounts of energy, making lipids an efficient type of energy storage.
Therefore, A lipid is any substance of biochemical origin that is insoluble in non polar solvent.
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How will the level of carbon in the atmosphere change if humans do nothing to reduce their impact on the carbon cycle?
Answer: If human beings will not do anything then the amount of carbon dioxide will increase in the environment. The amount of carbon dioxide will keep on increasing in the atmosphere because there are various sources by which it can be released into the environment. The burning of fossil fuel, emission from vehicles, gases released from industries contributes to the increase in amount of carbon dioxide in environment.
A 10-year-old girl with adhd has been on ritalin (methylphenidate) for 6 months. the girl's mother calls and tells the nurse that the medication is ineffective and requests an immediate increase in the child's dosage. what should the nurse say?
The nurse should inform the mother that medication dosage adjustments must be overseen by a healthcare professional following a comprehensive evaluation, potentially involving a review of adherence, side effects, and behavior, with considerations for CBT or other interventions.
The nurse should advise the mother that dosage adjustments for medications like methylphenidate (Ritalin) used to treat ADHD should only be made under the supervision of a healthcare professional. It is important to conduct a proper assessment to determine why the medication might seem ineffective. Factors such as adherence to the medication schedule, potential side effects, and the child's overall behavior at home and school should be considered. A proper evaluation might lead to adjustments in medication, the incorporation of cognitive behavioral therapy (CBT), or other interventions. The mother should be encouraged to schedule an appointment with the child's healthcare provider for a comprehensive review and possible modification of the treatment plan.
What is the function of a diagnosis pointer?
A diagnosis pointer in medicine is a code used in medical billing and coding to indicate the reason for a particular diagnosis or procedure. It helps in accurately identifying and documenting the medical condition for reimbursement and medical record keeping. The recommended treatment based on a preliminary diagnosis depends on the specific medical condition or disease.
Explanation:In medicine, a diagnosis pointer is a code used in medical billing and coding to indicate the reason for a particular diagnosis or procedure. It is a pointer that links specific diagnoses to specific procedures or services provided. The diagnosis pointer helps in accurately identifying and documenting the medical condition or illness being treated, which is necessary for proper reimbursement, insurance claims, and medical record keeping.
For example, in the given context, the phrase 'Based on these results, do you have a preliminary diagnosis?' suggests that the healthcare professional is trying to identify the specific medical condition or disease based on the test results.
A recommended treatment based on a preliminary diagnosis would depend on the specific medical condition or disease. It could involve medications, surgeries, therapies, or lifestyle changes, among other options.
1 pts tracy learned to keep her tent from sagging by strengthening connections between its support poles. for tracy to learn, changes in her brain that involved the strengthening of connections between neurons likely occurred. this process is known as
Tension on the vocal cords is regulated by the
They are made up of twin infolding of mucous membrane that are extended across the larynx from back to front.
What Tension on the vocal cords is regulated?The vocal cords' size has an impact on voice pitch. The recurrent laryngeal branch of the vagus nerve controls the laryngeal folds, which vibrate when speaking or singing and are open when breathing.
Because the vocal folds are linked to the arytenoids and move together with them, the arytenoid cartilages aid in the movement of the vocal folds, allowing tension, relaxation, or approximation of these.
The arytenoids are also linked to several intrinsic laryngeal muscles and ligaments, which can move them.The vocal control system may become uncoordinated during extended periods of muscle stress in the voice box.
Therefore, movement of the arytenoid cartilages and contraction of laryngeal muscles.
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Cancerous tumors are divided into broad groups on the basis of the particular type of tissue from which the tumor cells arise. this is called
) how does a cladogram communicate the order in which a set of related species evolved?
Which carbohydrate can be used by the body as an immediate source of energy? glucose
cellulose
chitin
glycogen
Glucose is an important energy source of the body. It can be rapidly used as a fuel for the energy needs of the body or can be stored as glycogen in the liver and muscle cells.
Further Explanation:
Carbohydrates are macromolecules which are composed of atoms of hydrogen, carbon, and oxygen. The carbohydrates are used as a fuel to perform normal body functions. They are categorized as monosaccharides, oligosaccharides, disaccharides, and polysaccharides.
The monosaccharides are simple sugars namely fructose, galactose, and glucose. These monosaccharides have a similar molecular formula [tex]\textbf{C}_{6}\textbf{H}_{12}\textbf{O}_{6}[/tex] but show different arrangements of atoms in their structural formula. The disaccharides are made when two simple sugars are linked together. For example, glucose and fructose are linked or bonded together to form sucrose. The molecules containing three to six monosaccharide units form the oligosaccharides.
The polysaccharides are complex molecules consisting of monosaccharide units in large numbers. For example, cellulose is a vital structural constituent in plants and is comprised of many glucose units. Starch and glycogen are found respectively in plants and animals as an energy source. They are long-chain branching polymers of glucose. Chitin is also a fibrous component present in the cell walls of fungi. It is a polymer of a glucose derivative which is N-acetylglucosamine.
In order to use energy stored in glycogen, cellulose, and chitin, they have to be broken down into simple molecules or monosaccharides (glucose). This glucose is then utilized during cellular respiration to form ATP (adenosine 5' triphosphate).
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Answer Details:
Grade: High School
Subject: Biochemistry
Chapter: Carbohydrates
Keywords:
Carbohydrates, monosaccharides, oligosaccharides, disaccharides, polysaccharides, glucose, starch, glycogen, chitin, cellulose, ATP, cellular respiration, macromolecules, simple sugars.
Glucose is the immediate source of energy for the body as it is a primary fuel for cellular activities. It is broken down from carbohydrates and transported in the bloodstream. The cells use glucose to produce energy via cellular respiration.
The carbohydrate that can be used by the body as an immediate source of energy is glucose. Glucose is a monosaccharide and is the primary source of fuel for cellular activities in the body. When we consume carbohydrates, they are broken down into glucose, which is then transported through the bloodstream to be used by cells for energy production via a process known as cellular respiration.
When a virus infects a cell, sometimes it remains dormant while the cell replicates, allowing its dna to be copied into each new cell before activating and producing virus copies. this is the ___________ cycle?
When are lung transplants performed? What are the risks of lung transplants? Explain
Answer:
A lung transplant is a surgery that removes a person’s diseased lung.
The diseased lung is replaced with a healthy lung from a deceased donor.
Explanation:
Lung transplants are typically performed when a person's lungs have irreparable damage and his or her life is in jeopardy.
What is lungs transplantation?When a person's lungs are irreparably damaged and his or her life is in danger, lung transplantation is usually performed.
While it can be a life-saving procedure, there are some risks involved, and patients must weigh the benefits against the risks.
Close monitoring and follow-up care are required after the transplant to prevent and manage any complications that may arise.
Lung transplants are typically performed when a person's lungs have irreparable damage and his or her life is in jeopardy.
Chronic obstructive pulmonary disease (COPD), pulmonary fibrosis, cystic fibrosis, emphysema, and other severe lung diseases are common reasons for lung transplantation.
When all other treatment options have been exhausted and the patient's quality of life is severely impacted, a lung transplant is considered.
Thus, these are some of the risks of lung transplants.
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Team-teaching is most often used when A. one teacher doesn't understand the curriculum and needs the guidance of a more experienced teacher. B. new policies must be created and the work load is too much for one teacher. C. there are too many children to teach at one time. D. there are large numbers of children at the same or similar age that can be broken into two or more groups for instruction or activity.
The correct answer is D. there are large numbers of children at the same or similar age that can be broken into two or more groups for instruction or activity.
Took the pf test and got 100%
Read the following statements that describe how information flows in the nervous system. What is the correct order in which they occur? 1) Response is carried to glands or muscles. 2) Information is gathered. 3) Information is processed and a response is formed. A. 3,2,1 B. 3,1,2 C. 2,3,1 D. 1,2,3
Answer: C. 2 , 3, 1
Explanation:
The nervous system is a complex network of neurons that carry messages in a body of particular animal.
The flow of information starts from the receptor which is the sense organ . The sensory neurons gathers the signals from the sensory organ and release them through neurons that are interconnected. Then they are received by the relay neuron which is in the spinal cord.Then the spinal cord sends signals back through the motor neuron to the muscle. Thus response is carried to glands or muscles to take away organ from danger.
Hence, the correct order in which they occur :
2) Information is gathered.
3) Information is processed and a response is formed.
1) Response is carried to glands or muscles.
What process can be described as two cell divisions genetic variation and haploid cells
The right answer is meiosis.
Meiosis is the process of double cell division allowing the formation of gametes, or sexual cells in eukaryotic organisms. It differs from mitosis, somatic cell division, which takes place only in a time. From a diploid mother cell, we obtain four haploid daughter cells with different genetic material.
* A first division of meiosis: the reduction division.
* A second division of meiosis: the equational division.
This process generates genetic diversity. It leads to the formation of haploid cells, designed to fuse with others, so as to obtain diploid cells after fertilization.
While studying the embryos of deer and hens, Bryan found marked similarities in them. Even though deer and hens are very different as adults, their embryos are very similar. Which of the following correctly explains this similarity? Deer and hens share an common, early ancestor. Deer and hens share a common, recent gene pool. Deer and hens share a common habitat.
As a barometer rises, what kind of weather can be expected?
Explain why other factors besides heredity influence a person’s health.
Answer:
The other factors like eating habits, lifestyle and environmental conditions affects the person's health.
This is because the body is completely affected by the foods that we eat and the lifestyle in which we live in.
No matter how healthy a person is but once he or she starts having unhealthy fooding habits then the person will suffers from obesity and other respiratory disorders.
The health of the person depends on the food that he eats and the environment he lives in so a person's health is depends on the other factors more than hereditary.
What is the advantage for scientists of using non scientists to collect data?
Before conducting an experiment, a scientist needs to review _____.
A. polls about public opinion
B. details about whether the experiment is important enough
C. trends involving consumers
D. results of other experiments related to the subject
Answer: D. results of other experiments related to the subject.
A literature review is necessary for a researchers to search and read, once before designing the research plan. It helps the researcher to know the process, conclusion, results, advantages and drawbacks of previous research work in the chosen subject. It makes the researcher aware about how his/her research question is appropriate and original. The results of previous studies if correctly matches with the hypothesis can be conclusive and useful for referring for current study if not than relevant precautions can be taken so, that they do not repeat in the current study.
Therefore, before conducting an experiment, a scientist needs to review the results of other experiments related to the subject.
What happens if homeostasis is disrupted in a living organisms
When an athlete first starts to exercise, her initial energy needs are provided primarily by the aerobic energy system?
What is the most important property of water for protecting fish in a shallow pond on a hot summer day
What is a possible cost of using renewable energy resources
What process is the fastest way to produce copies of dna?
During a rainy spring, where are you most likely to find surface runoff? PLEASE HELP
A. In a grassy prairie
B. On a mulched flowerbed
C. On a sloped parking lot
D. In a sand pit
Answer: C. On a sloped parking lot
Surface runoff can be referred as the flow of water, that occurs when the excess water flows from the storm water, melt water, flood, rain streams and rain fall. The fast moving water current takes along with it superficial layers like surface and sub- surface layers of soil. Hence, causes water erosion of soil.
The slope parking lot will favor, surface runoff more likely than in a grassy prairie, mulched flower bed, or in a sand pit because the slope will provide a surface for free flow of water. There are chances that water gets absorbed by the soil in the grassy prairie, mulched flower bed and sand pit. Whereas the slopy surface of parking lot will not allow the water retention by soil, instead will accelerate the flow of water.
Answer: C. on a sloped parking lot
Explanation: a p e x
What is the advantage to a sessile animal to produce free swimming larvae?
A sessile animal to produce free swimming larvae has primarily and radial symmetry. The advantage of this is that the primary and radial symmetry allows for the animals to reach out in all directions from one center such as during feeding. Since they don’t have a high degree of controllable movement even during food collecting periods, they can travel much greater distances than the bottom-dwelling adults, increasing their range. Secondarily, radial symmetric animals are able to receive stimuli from all directions which have efficient defense mechanisms due to their radial symmetric distribution.
Final answer:
Sessile animals like sponges produce free-swimming larvae to spread offspring across new environments, promoting survival and genetic diversity, despite high predation and low survival rates.
Explanation:
The advantage to a sessile animal, such as a sponge, to produce free swimming larvae is that it allows the larvae to disperse into new environments, which increases the likelihood of species survival. Since sessile organisms are fixed in one place, having free-swimming larvae ensures that their offspring can settle in new locations where competition for resources may be lower, and there's a potential for greater access to food. This strategy also contributes to greater genetic diversity within a population, as larvae can travel and potentially mix with different gene pools. External fertilization is common in many aqueous environments, which helps protect the eggs from drying out and permits broadcast spawning, a process where eggs and sperm are released into the water. While this results in a high risk of predation and low survival rates for the eggs, the massive production of eggs increases the chance of fertilization and ensures some will survive to adulthood.
Consider a cell that has three pairs of chromosomes. what fraction of the gametes produced from this cell will contain only maternal chromosomes?