The correct order of the processes of respiration starts with pulmonary ventilation, followed by external respiration, then inter-pulmonary respiration, and ending with internal respiration.
Explanation:The processes of respiration should be in the following order:
pulmonary ventilation
,
external respiration
,
inter-pulmonary respiration
, and then
internal respiration
Pulmonary ventilation is the first step in the respiratory process where the air is moved into and out of the lungs. External respiration is the exchange of gases with the external environment and it occurs in the lungs. Interpulmonary respiration refers to the transportation of gases between the lungs and the cells of the body, this is conducted by the circulatory system. Finally, internal respiration is the process in which oxygen is used for the metabolic reactions in cells and carbon dioxide, as a byproduct, is produced.
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Which substance has a high albedo?
I don't see any options
Answer: Snow
Explanation: Eh
How does a deletion mutation differ from a substance mutation?
A deletion mutation completely destroys a nucleotide, but substitution mutation replaces a nucleotide, or one amino acid.
Explanation;Deletion is an example of a Frame shift mutation, a mutation that shift the reading frame of the genetic message by inserting or deleting a nucleotide.A deletion mutation occurs when part of a DNA molecule is not copied during DNA replication. Deletion of a nucleotide in a DNA sequence that causes a frame shift mutation which usually produces a malfunctioning protein.Substitution Mutation occurs when one nucleotide base is replaced by another. There are three types of substitution mutation namely; Missense, Nonsense, and Silent mutations.Paulo is doing a presentation in his class about the characteristics of plants. during his research he has written down some notes. Which would be the best title for Paulo’s presentation?
Answer: can be almost any size
Explanation: Plants are extraordinary organisms that come in a variety of shapes and sizes. The smallest is the watermeal (Wolffia globosa). With sizes of approximately 2 millimeters (0.079 in), it is also the smallest flowering plant in the world. One of the largest are the sequoia with heights of 70-85 meters and ages of over 3000 years old.
Plants are usually divided into two groups depending if they produce seeds or not. Thus, the three group title is unsuitable. As shown above, plants can reach extremely large sizes so the second title is unsuitable too.
All multicellular organisms contain specialized tissues, not only plants. Plants use active transport too and do not rely solely on diffusion. The last tile is also unsuitable as some plants do have true stems and leaves.
The best title for Paulo's presentation would be "How Plants Differ". This is because it is the most general title that encompasses all of the information in his notes. The other options are either too specific or not specific enough.
How Plants Differ is a good title because it covers all of the following points:
Plants can be divided into three groups: non-vascular, vascular, and seed-bearing.
Plants can be small or large, depending on the species.
Plants have specialized tissues, but they also use other mechanisms, such as active transport.
Some plants have true stems and leaves, while others do not.
The other options are not as good because they do not cover all of these points. For example, "Can Be Almost Any Size" is too specific because it only covers one of the points (that plants can be small or large). "How Plants Work" is not specific enough because it could cover a wide range of topics, not just the characteristics of plants.
Therefore, the best title for Paulo's presentation is "How Plants Differ".
what would occur in your muscles if there was a drastic decrease in calcium production?
It causes muscular irritability which can lead to cramps and twitching of facial muscles.
Final answer:
A drastic decrease in calcium production can lead to hypocalcemia, impacting muscle contractions and causing symptoms such as cramps, spasms, or tetany. Neurons can also be affected, leading to increased excitability and convulsions. Hypoparathyroidism, a common cause of low blood calcium, can severely disrupt neuromuscular function.
Explanation:
When there is a drastic decrease in calcium production in the body, it leads to a condition called hypocalcemia. This condition can negatively impact various systems within the body, including the muscular system. Without sufficient calcium, muscle contractions become impaired, which might lead to muscle cramps, spasms, or even prolonged contractions known as tetany. For neurons, low blood calcium can increase membrane permeability to sodium, which can result in muscle twitching and severe cases may lead to convulsions or paralysis, including respiratory muscles, and can prove to be fatal.
In the case of hypoparathyroidism, which is an underproduction of parathyroid hormone (PTH), there can be extremely low levels of blood calcium. As PTH helps regulate calcium levels in the blood, its deficiency can cause acute symptoms in muscle contractions and overall neuromuscular function. Muscle function impairment and tetany are common outcomes of severe hypocalcemia due to hypoparathyroidism.
which situation could cause an ecosystem to lose its equilibrium
Ecosystems can lose equilibrium due to catastrophic natural events, human-induced disruptions, and the loss of keystone species. These events can overwhelm the ecosystem's resistance and resilience, leading to irreversible changes or total collapse.
An ecosystem can lose its equilibrium due to several factors, both natural and human-induced. Natural events such as bushfires, droughts, floods, and volcanic eruptions can cause temporary or long-term disruptions in an ecosystem, impacting its health and leading to possible ecosystem collapse or the need for ecological succession. Human impacts, including the introduction of toxic substances like DDT or excessive fertilizers, can lead to the depletion of key species and alter nutrient cycles and energy flows, which are central to maintaining ecosystem equilibrium. Additionally, the loss of keystone species can set off an extinction cascade, fundamentally changing the ecosystem's composition and function.
It's essential to understand the concepts of resistance and resilience in ecosystems, which describe an ecosystem's ability to withstand disturbances and bounce back to a state of equilibrium, respectively. When human actions such as pollution, overfishing, or habitat destruction overwhelm an ecosystem's resilience, it can cripple the ecosystem's ability to return to its original state, potentially leading to irreversible changes or complete destruction.
Which mode of transfer does not occur?
A)
DNA ---> RNA
B)
RNA ---> Protein
C)
DNA ---> Protein
D)
mRNA ----> Protein
Answer:
The correct option is C
Explanation:
The central dogma involves conversion of DNA to protein. The DNA either undergoes transcription to form RNA or replication to form a new DNA. When transcription occurs, RNA is formed which can then be translated into protein. Consider the illustration below
DNA ⇒ RNA ⇒ Protein
There are three types of RNA
tRNA → transfer RNArRNA → ribosomal RNAmRNA → messenger RNAOf these three RNAs, the mRNA is the one translated into protein with the aid of the remaining two.
From the above, it can be deduced that DNA cannot be directly converted into protein.
The mode of transfer that does not occur in the process of genetic expression in cells is directly from DNA to protein. Information first passes from DNA to RNA, and then from RNA to protein.
Explanation:In the process of genetic expression in cells, the mode of transfer that does not occur is DNA ---> Protein.
The usual sequence of information transfer is from DNA to RNA, and then from RNA to protein, a process known as the Central Dogma of Molecular Biology. The DNA is transcribed into messenger RNA (mRNA) in a process called transcription. The mRNA is then translated into protein in a process called translation.
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Write a paragraph discussing the relationships between the organizational levels of the environment: biosphere, ecosystem, biome, community, population, and organism
Organism:
An individual is any living thing or organism. Individuals do not breed with individuals from other groups. Animals, unlike plants, tend to be very definite with this term because some plants can cross-breed with other fertile plants.
In the diagram above, you will notice that Gill, the goldfish, is interacting with its environment, and will only crossbreed with other gold fishes just like her.
Population:
A group of individuals of a given species that live in a specific geographic area at a given time. (example is Gill and his family and friends and other fishes of Gill’s species) Note that populations include individuals of the same species, but may have different genetic makeup such as hair/eye/skin colour and size between themselves and other populations.
Community:
This includes all the populations in a specific area at a given time. A community includes populations of organisms of different species. In the diagram above, note how populations of gold fishes, salmons, crabs and herrings coexist in a defined location. A great community usually includes biodiversity.
Ecosystem:
As explained in the pages earlier, ecosystems include more than a community of living organisms (biotic) interacting with the environment (abiotic). At this level note how they depend on other abiotic factors such as rocks, water, air and temp
Biome:
A biome, in simple terms, is a set of ecosystems sharing similar characteristics with their abiotic factors adapted to their environments.
Biosphere:
When we consider all the different biomes, each blending into the other, with all humans living in many different geographic areas, we form a huge community of humans, animals and plants, and micro-organisms in their defined habitats. A biosphere is the sum of all the ecosystems established on planet Earth. It is the living (and decaying) component of the earth system
A patient is suffering from polio, which is a viral disease. What treatment could have prevented the disease? The patient should have been vaccinated. Antibiotics should have been given to the patient. The patient should have consumed nutritious food. Surgery should have been performed on the patient.
The patient should have been vaccinated. The vaccine prevents you from getting polio
The treatment that could have prevented the polio disease is vaccination. Therefore, option (A) is correct.
What is vaccination?Polio is a viral disease that can be prevented through vaccination. The polio vaccine is safe, effective, and widely available. It is recommended that children receive a series of polio vaccinations, typically starting at 2 months of age.
Vaccination is the most effective way to prevent polio and protect against the serious complications associated with the disease. Antibiotics, nutritious food, and surgery do not prevent or cure polio as it is a viral infection.
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_________________ is a recessive genetic disorder that strikes young African-Americans and affects the hemoglobin in red blood cells.
A) AIDS
B) Hemophilia
C) Tuberculosis
D) Sickle-cell anemia
In eukaryotes, Mitosis is the process that produces 4 identical cells from two cells. True or false I believe it’s false .... am I right ?
Yes you are right in thinking that as mitosis creates two daughter cells. Meiosis is the one which creates 4 identical cells
NEED ASAP!!!!
Which of the following is a chemical change?
A. Water vapor in the air turns to liquid water in the form of rain
B. The oxygen in the air forms ozone in presence of UV rays
C. Dust and soot particles being suspended in the air
D. Sulphur dioxide being released in the air
D. Sulfur dioxide being released in the air
B. The oxygen in the air forms ozone in the presence of UV rays
The efforts of governments and businesses toward conservation and preservation have had a positive impact on the environment. Please select the best answer from the choices provided T F
The statement given in the question is TRUE.
Both government and many business organization have make grand efforts to conserve and preserve natural resources and to keep the environment from been polluted. The government has enacted many laws that has to do with conservation of environment and natural resources, some of these laws have to do with how much pollutant business organizations can release into the environment. Overall, all the preservation and conservation efforts have impacted positively on the environment.
Answer:
t
Explanation:
a tRNA molecule has an ____ ____ at the top and an _____ at the bottom
amino acid and RNA (or anticodon)
tRNA is used in the process of translation, which is when cells create a protein (polypeptide) from a strand of mRNA just came from the nucleus and is floating in the cytoplasm. This process occurs with the help of ribosomes!
A ribosome binds to an mRNA molecule, and tRNA's come swooping in one at a time to add amino acids to a growing polypeptide chain (protein).
On one end of the tRNA is a set of 3 RNA bases (called an anticodon), that binds perfectly to the opposing next 3 bases on the mRNA strand (called a codon) as it works it way through the ribosome. On the other side of the tRNA is the amino acid that the codon on the mRNA codes for, thus allowing the specific protein to grow 1 amino acid at a time.
***see attached pic***
A tRNA molecule has an amino acid attachment site at the top and an anticodon at the bottom
What are the different types of RNA molecules?In the production of proteins, there are three primary kinds of RNA. They are ribosomal RNA, transfer RNA, and messenger RNA (mRNA) (rRNA).
mRNA
The genetic code needed to generate proteins is found in mRNA, which is produced from DNA. Prokaryotic mRNA doesn't need to be translated; it can start synthesizing proteins right away. A newly generated RNA transcript in eukaryotes is referred to as a pre-mRNA and needs to go through maturation to become an mRNA. Introns and exons, which are referred to as coding and non-coding sections, respectively, are found in pre-mRNA. The exons are linked together and the introns are spliced during the processing of pre-mRNA. The 5' end of the RNA transcript receives a 5' cap called 7-methylguanosine, while the 3' end is polyadenylated.tRNA
The RNA molecules known as tRNAs convert mRNA into proteins. A 3' acceptor site, 5' terminal phosphate, D arm, T arm, and anticodon arm make up their cloverleaf structure. With the aid of aminoacyl-tRNA synthetase, a tRNA's main job is to transport amino acids to a ribosome complex on its 3' acceptor site. To create proteins, enzymes called aminoacyl-tRNA synthetases attach the proper amino acid to a free tRNA. An aminoacyl-tRNA is a tRNA that has been bonded by an amino acid.
rRNA
Ribosomes, which are necessary for protein synthesis, are created by rRNA. There are two ribosomal subunits: a large and a small one. A prokaryotic 70S ribosome is made up of the small 30S and large 50S ribosomal subunits. The 40S and 60S subunits combine to generate an 80S ribosome in eukaryotes. The ribosomes have three sites for binding aminoacyl-tRNAs and joining amino acids to form polypeptides: the exit (E), peptidyl (P), and acceptor (A) sites.To learn more about RNA molecules, refer to
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Which condition is a biotic factor of an aquarium ecosystem?
O amount of oxygen in the water
temperature of the water
O
algae growing on the glass
O
gravel on the bottom of the aquarium
Answer:
Algae growing on the glass
Explanation:
biotic means it's alive, while abiotic means it's not alive
Answer:
The answer is the algae one!
Explanation:
I took the K-12 test and got 100%!
Which of the following is true about oxygen in plants? Oxygen is produced only for photosynthesis and is not used for any other purpose. Oxygen is stored in the plant for animals to consume and use for cellular respiration. Plants need to take in both carbon dioxide and oxygen for the process of photosynthesis. Plants both produce and use oxygen for photosynthesis and cellular respiration, respectively.
The answer is; Plants both produce and use oxygen for photosynthesis and cellular respiration, respectively.
Plants use the energy from the sun to split water molecules to H+ and O2-. The H+ is used to reduce carbon dioxide into glucose molecules. The oxygen is a byproduct that is evolved. However, the cellular respiration of plant cells is similar to that of other organisms on earth. They utilize oxygen to ‘burn’ glucose for energy.
Final answer:
Plants produce oxygen as a byproduct of photosynthesis and also consume it during cellular respiration to produce ATP.
Explanation:
Among the given options, the true statement about oxygen in plants is that plants both produce and use oxygen for photosynthesis and cellular respiration, respectively. During photosynthesis, plants utilize carbon dioxide and water, using sunlight as an energy source, to produce glucose and release oxygen as a byproduct. However, the same plants also take in oxygen for the process of cellular respiration, which occurs in all parts of the plant, not just the green parts containing chlorophyll. Oxygen is necessary for this process as it helps to break down glucose, releasing energy in the form of ATP which the plant uses for its metabolic activities.
an ion is formed when an Atom ___
A: loses electrons
B: gains neutrons
C: gains photons
D: loses photons
What is the term that describes how a plant responds to gravity
It would have to be a because I know I’m right
Which of the following is a protostome?
molluscs
sponges
cnidarians
chrodates
Molluscs are protostomes.
Mollusks are protostome
bucket of dirt is a mixture of many different particles. Each kind of particle in a bucket of soil has unique properties. Here are four particles that make up soil. What property would you use to separate the four particles?
A) size
B) color
C) the way it feels
D) the minerals present
Answer:
IT IS SIZE
Explanation:
How would a decrease in the strength of deep ocean currents affect ocean life?
In the deep ocean, currents are what sea creatures use to travel at a faster and easier rate. If these currents decrease than it would be hard for them to travel. For example, if a sea turtle needed to lay her eggs, but there was no current, she might not get to land on time before she has to lay them.
Currents such as the EAC enable organisms or creatures to travel throughout, much the same as in Finding Nemo.
Lacking complete capability, the ocean current would have been unable to transport creatures or some objects towards their proper locations.Ocean depths streams are concentration and sometimes even fluctuate throughout magnitude, speed, as well as energy beyond atmospheric circulation.
Thus the response above is correct.
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briefly describe how other parts of the universe were formed?
1. An infinitely dense atom of matter explodes, releasing all matter in the known universe.
2. This matter clumps together forming rocks and dust; that which doesnt compact remains as gas.
3. The rocks and dust are pulled in to each other by their own gravity. These clumps get bigger and bigger, and form planets.
4. Gas and dust clouds, better known as nebulae, (sing. nebula) begin to react, clump together and generate heat. Stars are formed out of these nebulae (unsure of the process).
5. The stars, with their powerful gravitational pulls, drag in planets to form solar systems. This happens on a larger scale as well, as groups of millions of stars are formed into galaxies, huge swirling discs containing millions of stars each.
That's where we are today.
Gneiss is a foliated metamorphic rock. It was formed from _____.
1.) equal pressure
2.) directed pressure
3.) confining pressure
4.) chemical reactions
2. Directed pressure
2.) directed pressure
Explanation:Gneiss is a foliated metamorphic rock that forms under conditions of directed pressure. This pressure flattens and elongates the rock in the direction of the greatest pressure, causing the minerals within the rock to realign and form distinct bands.
Foliation is created through a process of differential pressure where mineral grains break, migrate, and recrystallize due to the uneven forces exerted within the Earth's crust, often along the boundaries of tectonic plates where collision or subduction is occurring. Non-foliated metamorphic rocks, such as quartzite and marble, can also form under directed pressure but do not show the characteristic banding seen in foliated rocks like gneiss.
we know from the DNA unit that chromosome (which are made of DNA) are copied by a process called ______
We know from the DNA unit that chromosome (which are made of DNA) are copied by a process called Transcription
Answer:a
Explanation:
Which of the statements below BEST describes the relationship between chromosomes and genes?
A) Chromosomes contain pieces of information for traits, called genes.
B) Genes contain pieces of information for traits, called chromosomes.
C) Chromosomes are passed on to the offspring only by the mother, but genes are passed on to the offspring by both parents.
D) Genes are passed on to the offspring only by the mother, but Chromosomes are passed on to the offspring by both parents.
Your answer is B Genes contain pices of infromation.
Ans. A) Chromosomes contain pieces of information for traits, called genes.
Genes can be defined as segments of DNA (deoxyribonucleic acid) that codes for a specific product (either protein or RNA). Chromosomes represent thread-like structures, which are made up of protein and DNA, found in nuclei of eukaryotic organisms.
Chromosomes carry genetic information for several traits in the form of genes, means genes are present in chromosomes. For example, human chromosome 1 contains a total of 1961 genes.
Thus, the correct answer is option (A).
Bacteria often contains small circular molecules of DNA know as what?
Bacteria often contain plasmids, which are small, circular, double-stranded DNA molecules that can carry genes conferring beneficial traits such as antibiotic resistance.
Explanation:Small circular molecules of DNA that are commonly found in bacteria are known as plasmids. These double-stranded DNA molecules are extrachromosomal, which means they exist independently of the bacterial chromosomal DNA. In the prokaryotic cells of bacteria, plasmids are located in the cytoplasm since bacteria lack a nucleus where eukaryotic DNA is typically found. The central region where the bacterial DNA resides is referred to as the nucleoid. Plasmids play a crucial role in the survival and adaptation of bacteria as they can carry genes that provide advantageous traits, such as antibiotic resistance. These plasmids can also be transferred between bacteria, a process which can lead to the spread of traits such as antibiotic resistance.
The bacterial DNA is organized within the nucleoid and a bacterium may have multiple plasmids. Each plasmid is a small, circular, supercoiled DNA molecule that often carries genes beneficial for bacterial survival under certain conditions, such as antibiotic or toxin-heavy environments. This demonstrates the importance of plasmids in the genetic adaptability of bacteria.
Which is an environmental factor that affects skin color in humans? amount of food consumed amount of sunlight absorbed number of genes inherited number of linked genes
Answer: Amount of sunlight absorbed
Explanation:
The amount of sunlight absorbed by the body affect the color of the individual. Rest all the factors that affects the color of the individual are genetic factors.
The person who absorbs more sunlight will have more melanin concentration or amount in their cells as as compared to the person who absorbs less sunlight.
Hence, the correct answer is option sunlight absorbed.
Monosaccharide is to carbohydrates as ________ is to protein
a.amino acid
b.fatty acid
c.nucleotide
d.glucose
A is the answer please make me the brainliest
The monosaccharide is to carbohydrates as amino acid is to protein.
Polysaccharide:
These are the polymer of the glucose or other monosaccharide such as galactose, heptulose.
Proteins:
They are the polymer of amino acids bonded by peptide bond.
Therefore, the monosaccharide is to carbohydrates as amino acid is to protein.
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Name the three types of muscles
Cardiovascular
Cardiac
Skeletal
Answer:
Smooth, Cardiac, Skeletal Muscle
Hope I helped!!
Explanation:
One reason common names are not useful to biologists is that they
a)require the use of a dichotomous key
b)are too long
c)can apply to more than one animal
d)are in Latin
The reason Common names are not useful to Biologists is that they can apply to more than one animal.
Can someone plz answer 20 points
Do sharks have bacteria in their stomachs that help them digest food
Ruminants, such as cows and sheep, are those animals that have four stomachs; they eat plant matter and have symbiotic bacteria living within their stomachs to help digest cellulose.hope for brainlist please dont report me