Select the correct answer.
What is ozone?
A. dissolved oxygen
B. the main catalyst in photosynthesis
C. a type of oxygen
D. a form of calcium carbonate
Answers
Related Questions
modern conservation biology increasingly aims at question 1 options: protecting federally listed endangered species. lobbying for strict enforcement of the u.s. endangered species act. sustaining biodiversity of entire ecosystems and communities. maintaining genetic diversity in all species. saving as much habitat as possible from development and exploitation.
Answers
Modern conservation biology aims at sustaining the biodiversity of entire ecosystems and communities.
While protecting federally listed endangered species and lobbying for strict enforcement of the U.S. Endangered Species Act are important objectives, modern conservation biology recognizes the importance of maintaining the integrity of entire ecosystems and communities. This involves preserving the relationships between different species, their habitats, and their interactions with the environment.
By focusing on ecosystem-level conservation, conservation biologists can help ensure that the complex web of life on Earth remains intact, rather than simply saving a few individual species. This approach also recognizes that genetic diversity is important not just for individual species, but for the health and resilience of entire ecosystems. Additionally, modern conservation biology recognizes the need to address threats to biodiversity beyond habitat destruction, including climate change, pollution, and invasive species.
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If the apple snail population, a primary
consumer, were to decrease what would
the limpkin, a secondary consumer that
eats mainly apple snails, have to do to
adapt to its environment? (Please
explain)
Answers
If the apple snail population were to decrease, the limpkin, a secondary consumer that eats mainly apple snails, would have to find an alternative food source in order to adapt to its environment. This could involve finding other types of snails or mollusks to eat, or potentially switching to a diet that includes other types of prey. The limpkin may also need to range over a larger area in order to locate sufficient food, or it may need to change its foraging behavior in order to more effectively locate and capture its preferred prey. Ultimately, the limpkin's ability to adapt to a decline in the apple snail population will depend on the availability of other suitable food sources and the flexibility of its foraging behavior.
explain why per mass oxygen consumption per hour is a good indicator of mass specific metabolic rate
Answers
Per mass oxygen consumption per hour is a good indicator of mass-specific metabolic rate because it provides information on the amount of oxygen used by an organism to generate energy over a given period of time.
Metabolic rate is the rate at which an organism consumes energy, and oxygen consumption is directly linked to metabolic rate because oxygen is required for the production of ATP, which is the energy currency of cells.
By measuring the amount of oxygen consumed per unit of time, researchers can calculate the metabolic rate of an organism, which is the amount of energy used per unit of time. This measurement is particularly useful for comparing the metabolic rates of organisms of different sizes because it takes into account the fact that larger organisms require more energy to maintain their body functions.
Additionally, per mass oxygen consumption per hour is a good indicator of metabolic rate because it is a non-invasive measurement. It does not require the use of tracer molecules or surgical procedures, which can be time-consuming and costly. Therefore, it is a convenient and efficient way to estimate metabolic rates in a variety of organisms.
Overall, per mass oxygen consumption per hour is a reliable indicator of mass-specific metabolic rate because it directly measures the amount of energy consumed by an organism, and it is a non-invasive and convenient way to estimate metabolic rates.
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which lung structure is a tiny sac that functions as an interface between air and blood?
Answers
Answer:
The tiny sac in the lung that functions as an interface between air and blood is called an alveolus (plural: alveoli).
Notch and delta are both transmembrane proteins involved in cell communication in the developing nervous system of vertebrate animals. What makes notch different from delta?.
Answers
A ladder is leaning up against an apartment building to help people get out of the building during a fire. The base of the ladder is 7 feet from the building. The ladder is 1 foot longer than the height it reaches on the building. What is the length of the ladder?
Answers
The Pythagorean theorem states that in a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides. The length of the ladder is 8 feet.
To determine the length of the ladder, we can use the Pythagorean theorem, which states that in a right-angled triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In this case, the ladder acts as the hypotenuse, the distance from the building acts as one side (7 feet), and the height the ladder reaches on the building acts as the other side (unknown). Since the ladder is 1 foot longer than its reach, we can represent the height as x + 1. Applying the Pythagorean theorem, we have 7^2 + (x + 1)^2 = x^2. Simplifying this equation leads to x = 3, which represents the height the ladder reaches on the building. Adding 1 to this value gives us the length of the ladder, which is 8 feet.
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Which of the following is a lipid-protein substance produced by neuroglial cells?
Answers
Answer:
Myelin
Explanation: is correct
Answer:
3: Myelin
Explanation:
Michael wants to test the effect of stomach acid concentration on the solubility of a particular oral medication. Which experimental design setup would best help him answer his question?
Answers
Prepare solutions of different acid concentrations, measure 50 mililiters of each into different beakers, and place the same type of pill of the same mass into the beakers
Explanation:
The experiment design setup that would best help him is preparing solutions of different acid concentrations, measuring 50 milliliters of each into different beakers, and placing the same type of pill of the same mass into the beakers. The correct option is B.
What is stomach acid?Stomach acids are the acid that is present in the stomach. These acids help in the process of digestion. Different acids dissolve different food items. These acids only help in digestion, but do to affect the walls of the stomach or other organs.
Michael is performing an experiment on acids in the stomach by the solubility of oral medication. He should perform by taking different acids on separate beakers to see the different reactions of medication on the acids.
Thus, the correct option is B. Prepare solutions of different acid concentrations, measure 50 milliliters of each into different beakers, and place the same type of pill of the same mass into the beakers.
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The question is incomplete. Your most probably complete question is given below:
Allow several pills to soak in different amounts of acid of a single concentration, and then measure the amount of dissolution on each.
Prepare solutions of different acid concentrations, measure 50 milliliters of each into different beakers, and place the same type of pill of the same mass into the beakers.
After allowing a pill to be exposed to one acid concentration, place it in different acid concentrations, and then measure the surface area that is dissolved.
Prepare solutions of different acid concentrations, measure 50 milliliters of each into different beakers, and place different types of pills of the same mass into the beakers.
all that glitters is not gold
Answers
Answer:
im allergic
Explanation:
A plant growing toward a light source is an example of an organism..
A: attracting a mate
B: destroying infectious germs
C: responding to external stimuli
D: obtaining moisture from the air
Answers
Answer:c
Explanation: The plant is responding to external stimuli by growing toward light like our eyes adjusting to the light in the dark......................
The correct answer is option c i.e. responding to external stimuli (phototropism).
Plants have a variety of developmental, physiological, and growth responses to light—sometimes only to particular wavelengths of light.
what is phototropism?
Phototropism is one of the many plant tropisms or movements which respond to external stimuli.
Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism.
Phototropism is a directional response that allows plants to grow towards, or in some cases away from, a source of light.
Photoperiodism is the regulation of physiology or development in response to day length. Photoperiodism allows some plant species to flower—switch to reproductive mode—only at certain times of the year.
hence , a plant growing towards a light source is an example of phototropism.
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Spell all words correctly.
What is the fused exoskeleton in crabs called?
The two fused segments are the thorax and the _____
Answers
Answer:
The two fused segments are the thorax and the abdomen. These form a segment called the "cephalothoraxes".
Explanation:
Hope I could help :)
The thorax and abdomen are the two melded segments. These form the "cephalothoraxes" segment.
What is exoskeleton?In contrast to the internal skeleton of a human, an exoskeleton is the external skeleton which also endorses and safeguards the body of an animal.
Some of the significantly bigger exoskeletons are referred to as "shells" in popular parlance.
The exoskeleton also acts as a water-tight barrier, safeguarding the insect from desiccation.
The wax-covered epicuticle contains the majority of the barrier. The exoskeleton serves an important function in preventing microorganisms from entering the animal's interior.
The two merged segments are the thorax and abdomen. The "cephalothoraxes" segment is made up of these.
Thus, the two fused segments are the thorax and the abdomen.
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A mutation occurs in the coding region of a gene with the following sequence AAGTGC. The translated sequence is Lysine (AAG), Cysteine (TGC). Give an example of the following types of mutation using AAGTGC as your normal sequence. Provide the translated sequence caused by the mutation. (Hint: You will need a codon table to translate the sequence)
(a) Synonymous mutation
(b) Non-synonymous missense mutation
(c) Non-synonymous nonsense mutation
Answers
(a) Synonymous mutation: AAGTGC is the normal sequence coding for Lysine (AAG) and Cysteine (TGC). A synonymous mutation occurs when a gene changes its nucleotide sequence but the amino acid sequence remains unchanged. An example of this type of mutation using AAGTGC is AAGTGT. The translated sequence would still be Lysine (AAG) and Cysteine (TGT). This is because TGT is a codon for Cysteine, so the amino acid sequence remains unchanged.
(b) Non-synonymous missense mutation: AAGTGC is the normal sequence coding for Lysine (AAG) and Cysteine (TGC). A non-synonymous missense mutation occurs when a gene changes its nucleotide sequence and the amino acid sequence is also changed. An example of this type of mutation using AAGTGC is AAGTGA. The translated sequence would be Lysine (AAG) and Glutamic acid (TGA). This is because TGA is a codon for Glutamic acid, so the amino acid sequence is changed from Cysteine to Glutamic acid.
(c) Non-synonymous nonsense mutation: AAGTGC is the normal sequence coding for Lysine (AAG) and Cysteine (TGC). A non-synonymous nonsense mutation occurs when a gene changes its nucleotide sequence and the amino acid sequence is changed to a stop codon. An example of this type of mutation using AAGTGC is AAGTAA. The translated sequence would be Lysine (AAG) and Stop codon (TAA). This is because TAA is a codon for Stop codon, so the amino acid sequence is changed from Cysteine to Stop codon, which causes the protein to be truncated.
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describe the procedure you followed to gram-stain bacteria. what is the purpose of each of the specific reagents?
Answers
The most frequent test to determine whether you have a bacterial infection is a Gram stain. The test will indicate whether your infection is Gram-positive or Gram-negative if you do.
What are Gram positive bacteria?If you are exhibiting signs of a bacterial illness, you could require this test. Numerous bacterial illnesses frequently exhibit the symptoms of pain, fever, and weariness.
The type of infection you have and where in your body it is located will determine any additional symptoms.
Depending on the type of illness, your doctor may need to collect a sample from the suspected infection site or from specific body fluids.
Therefore, The most frequent test to determine whether you have a bacterial infection is a Gram stain. The test will indicate whether your infection is Gram-positive or Gram-negative if you do.
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Which is the end result of cytokinesis from a cell undergoing mitosis?
a. one cell that has two identical copies of DNA
b. one cell that has two different copies of DNA
c. two cells that have two identical copies of DNA
d. two cells that have two different copies of DNA
Answers
Answer: C two cells that have two identical copies of DNA
Explanation: Took the test!
Which of the following scenarios would MOST LIKELY lead to a change in DNA that would increase genetic variation in the individual’s offspring? An A - T base pair changes to a C - G base pair during mitosis in a liver cell of a young man. A virus inserts nine base pairs into a lung cell of an elderly man. UV radiation mutates the skin cells of a pregnant mother, changing two G bases to T bases. A G - C base pair changes to an A - T base pair randomly in a young woman's egg cell during meiosis.
Answers
The scenario that would most likely lead to a change in DNA that would increase genetic variation in the individual’s offspring is when a G-C base pair changes to an A-T base pair randomly in a young woman's egg cell during meiosis. The last option is correct regarding mutation.
What happens to the mutation in the reproductive organs?The mutations that happen to the reproductive organs, such as the ovary of the female and the testes of the male, have a higher chance of being inherited by the next generation. Because it occurs in the ovum, this type of mutation is inheritable.
Hence, the last option is correct because it states that a change in DNA that would increase genetic variation in the individual’s offspring is when a G-C base pair changes to an A-T base pair randomly in a young woman's egg cell during meiosis.
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Read each of the sentences that describe what happens either during mitosis or meiosis. Drag each sentence into the correct box.
Each replicated chromosome pairs with its corresponding homologous chromosome.
Tetrads form and crossing-over sometimes occurs.
Paired homologous chromosomes line up across the center of the cell.
Four haploid daughter cells form that are not identical to the parent cell.
Homologous chromosomes do not pair.
One row of chromosomes lines up at the center of the cell.
The cell nucleus divides only once.
Two diploid daughter cells form that are identical to the parent cell.
Which are in mitosis and which are in Meiosis?
Answers
This ruling explains what wakes during meiosis. Copied chromosomes, which are made up of two sister chromatids, mate with their homologous counterparts during meiosis. Synopsis, sometimes referred to as this pairing takes place during Prophase I of Meiosis I.
During mitosis, every chromosome that has been copied pairs with a homologous chromosome.
In the cell's center, paired homologous chromosomes are aligned in a straight line.
The center of the cell is lined up with one row of chromosomes.
One division occurs in the cell nucleus.
When this happens, the parent cell divides into two diploid daughter cells.
Meiosis: Tetrads may develop and crossing-over happens.
A total of four non-identical haploid daughter cells are produced.
Chromosomes that are identical do not pair.
Meiosis is a specialized type of cell division that produces four haploid daughter cells with genetic variation. Mitosis is the process of cell division that produces two identical diploid daughter cells.
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Get my Joke right u get brainlyest:
How do cows walk?
Answers
Can someone please help Me?
Answers
Answer:
c.
Explanation:
Explain the role of the cell membrane.
Answers
If 65,000 kcal are
available in the
producers trophic
level, how much
energy is available
to the secondary
consumers?
Answers
Answer:
13000 would be avalable because 10% is taken every time it is eaten so 65,000 with 10% taken out twice (20% of 65,000) is only 13,000 kcal available to the secondary consumers.
Which molecule separates the conteins inside of the cell from the contents outside of the cell
Answers
Answer:
Thanks
Explanation:
skannalakanslanwlKsoqnw
the chromosomes of the body cells are paired. true or false
Answers
Answer: True: The chromosomes of body cells are paired.
Explanation: Hope it helps
In ecosystems, biotic an abiotic factors influence one another. Give three examples of an interaction between a biotic and abiotic factor in any of the marine ecosystems from the chart. (Use the back for more room).
Answers
Answer:
One of the most critical interactions in an ecosystem between the biotic and abiotic environment is photosynthesis, the base chemical reaction that drives most life on earth. Plants and algae use sunlight, water and carbon dioxide to create the energy they need to grow and live via photosynthesis.
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(a) Identify both the cellular component and the location of the component that is responsible for producing the luciferase protein from mRNAs transcribed in the plasmid-containing T lymphocytes. Explain what dictates to the lymphocytes the correct order in which amino acids should be linked to form the luciferase protein.
(b) Identify the independent variable in the experiment described. Identify the plasmid that was used as a negative control for luciferase activity. Justify including the plasmid with the non-CD3γ active promoter in the experiments.
(c) Identify the plasmid that must contain the CD3γ core promoter sequence but the fewest or no negative regulatory sequences. Based on the data in Figure 2, describe the most likely cause of the variation in luciferase activity among the cells that contain plasmids pCD3γ-419, pCD3γ-309, pCD3γ-239, and pCD3γ-199. Calculate the approximate percent increase in luciferase activity between cells containing plasmid pCD3γ-59 and cells containing plasmid pCD3γ-149. Round to the nearest whole number.
(d) Predict the most likely observed level of luciferase activity if plasmid pCDγ3-789 is introduced into nonlymphoid cells such as a line of kidney tissue cells. Provide reasoning to justify your prediction.
Answers
Ribosomes are the organelles that is resposnible for the production of luciferase.
Where luciferase is produced?Luciferase is produced by ribosomes in the cytoplasm of the cell or in the cytosol of the lymphocytes. This indicates the sequence of nucleotides in the messager RNA gives message to the amino acid sequence of luciferase.
So we can conclude that ribosomes are the organelles that is resposnible for the production of luciferase.
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Construct a written argument of how genetic variation in the ladybug population increased the chance of survival of some individuals and changed the population over time. Include evidence and reasoning.
Answers
Individuals have a higher chance of surviving thanks to the genetic diversity in ladybird populations, which also helps them adapt to shifting circumstances. Selection for favourable features, like immunity or colour, causes the frequency of advantageous genes to rise over time in the population.
How can genetic diversity improve the likelihood of a species surviving?By retaining a substantial genetic diversity, organisms can adapt to shifting environmental conditions and avoid inbreeding. Inbreeding occurs in small, isolated groups, which may make a species less able to survive and reproduce.
How can genetic diversity boost the likelihood of evolution?Different phenotypes can be introduced into organism by genetic changes gene activity or protein function. if a trait is beneficial and aids in the individual's ability to reproduce and live.
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when a cell releases a signal molecule into the environment and a number of cells in the immediate vicinity respond, this type of signaling is
Answers
Answer:
Paracrine communication
In fruit flies, straight wings are dominant and curly wings are recessive
Answers
Answer:
If this is a T or F question, it's probably true
HELP pls will mark you the brainliest
Answers
Answer:
The boys had 6 with black hair, 3 with blonde hair, 0 with red hair, and 6 with brown hair
Explanation:
This seems like the best conclusion out of all of the other options
why do we need sex cells to have half the number of chromosomes
Answers
The ______ rami of most spinal nerves form nerve plexuses on the right or left side of the body.
Answers
Answer: anterior
Explanation: