Living things must maintain a fairly constant pH balance because the pH level determines
Which on?
Answers
Answer:
My guess would be the fourth option
Explanation:
All living thing have chemical reactions within their body, and ph can affect thous reactions.
Related Questions
Calculate the number of liters of liquid that are in Lake Erie, which has a volume of 484 cubic km (km3). Express your answer in scientific notation.
Answers
Answer: The answer in scientific notation is [tex]4.84\times 10^{14}[/tex]
Explanation:
The conversion factor is : [tex]1km^3=10^{12}L[/tex]
Given : Volume of liquid in Lake Erie = [tex]484km^3[/tex]
To find : Volume of liquid in Lake Erie in units of liters
As [tex]1km^3=10^{12}L[/tex]
Thus [tex]484km^3=\frac{10^{12}}{1}\times 484=484\times 10^{12}L[/tex]
The answer in scientific notation is [tex]4.84\times 10^{14}[/tex]
A scientist creates a cat that glows in the dark due to the insertion of genes from another organism. What type of biotechnology did they use?
cloning
genetic mutation
artificial selection
genetic engineering
Answers
Answer:
Artificial selection
Explanation:
When Mendel crossed hybrid pea plants, he observed that certain traits would appear in the next generation more often than others. He also observed that traits did not show up in offspring in predictable combinations. For example, not all tall plants had green peas, while not all short plants had yellow peas. Which term describes this observation?
A. Dominance
B. Sex Linkage
C. Segregation
D. Independent Assortment
Answers
The law of independent assortment describes that it is not necessary for the plant to have only the predictable observations. New combinations of characters can also develop in plants. Thus, the correct option is D.
What is Independent Assortment?Mendel in his laws of genetics described that there are two different alleles present for all the characters in an organism where, one allele is dominant and the other is recessive.
The principle of Mendel's law of independent assortment describes how the different genes separate from each other independently when the reproductive cells develop in an organism. Independent assortment of genes and their corresponding traits were observed for the first time by Gregor Mendel in 1865 during his studies of genetics in the garden pea plants (pisum sativum).
Therefore, the correct option is D.
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How is a renewable resource different from a nonrenewable one?
A. A renewable resource is more likely to run out.
B. A renewable resource can never be replenished.
C. A renewable resource has a higher demand
D. A renewable re purse is replenished faster than it is used
Answers
Answer:
Explanation:
d
A renewable resource is different from a nonrenewable one by the fact that a renewable resource is replenished faster than it is used. Thus, the correct option for this question is D.
What is a Renewable resource?A renewable resource may be defined as a type of resource that significantly continues to exist in nature despite being consumed or can replenish itself over a period of time even as they are utilized by the organisms.
Examples of renewable resources may include wind power, solar energy, geothermal energy, biomass, etc. These resources are available in nature in unlimited amounts as compared to non-renewable resources.
Therefore, a renewable resource is different from a nonrenewable one by the fact that a renewable resource is replenished faster than it is used. Thus, the correct option for this question is D.
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why do exons have to be spliced together? I swear I'm so supi d lol. Please Help :)
Answers
Which of the following best describes the structure of a typical molecule of DNA?
A. helical
B. double-stranded
c. double-stranded helix
D. complementary
Answers
Answer:
may be Bor A is the answer but itay be eitherA orB
C. Double- stranded helix
what is unique about the coast line ?
Answers
Answer:
A is the answer
Explanation:
promise ....,.
point mutation (like substitution)-
frameshift (like insertion or deletion) -
silent mutation-
missense mutation-
nonsense mutation-
the answer choices is with a circle around is for match the term with the definition.
PLEASE DON'T ANSWER RANDOMLY IF YOU DO THIS I AM REPORT YOU AND YOU ARE GONNA LOSE POINTS
IF YOU ANSWER THESE QUESTIONS CORRECT I GIVE BRAINLIEST
what is on red is what you have to do and what is a circle in blue is the options for the answer
ASAP
Answers
Answer:
Point mutation.
Explanation:
In the blue defenition it says to substitute and that is one of the key words for point mutation.
Use the terms diploid, haploid, and adult to fill in the blanks describing how ulva reproduces with alternating generations of diploid and haploid cells.
Answers
an ice cube is set on a table at room temperature for 3 hours. what happens to the temperature of the ice cube and the table
Answers
Answer:
the ice goes to the rooms temperature so I will melt
What makes an item scarce?
O It has value and is useful to someone.
O It is in short supply in comparison to the demand for the product.
O both A and B
O none of the above
Answers
2. Which of the following correctly describes the action of water molecules in the wood frog's body as winter approaches and temperatures fall?
Molecules gain thermal energy.
Molecules change state from a liquid to a gas. Molecules increase in speed, spreading farther apart from one another
Molecules lose energy, moving closer together.
Answers
Answer:
Molecules lose energy, moving closer together.
Which of these is changed by the Milankovitch cycles?
A. the reflectivity of Earth
B. the amount of solar energy that reaches Earth
C. the duration of seasons on Earth
D. the length of a year on Earth
Answers
Answer: the amount of solar energy that reaches Earth
Explanation:
---> The process of selecting a few organisms with desired traits to serve as parents of the next generation. Selective breeding of plants and animals to promote the occurrence of desirable traits in offpsring.?
Answers
The process of determining a few creatures possessing desirable characteristics to participate as the founders of the coming generation is Artificial selection.
Artificial selection
The discovery of advantageous characteristics among living things by humankind, as well as the efforts performed to improve and maintain such traits throughout upcoming populations or years.
It follows the same procedure as evolutionary processes, with the exception that with biological evolution, nature determines the decisions rather than humans.
Thus the above response is correct.
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differentiate between the structure and function of the following plant cell organelles cell membrane, cell wall, nucleus, cytoplasm, mitochondria, chloroplasts, and vacuole
Answers
Answer:can you break it down for me
Explanation:it needs to be explained to me first for me to understand
The cell wall is only found in plants, whereas the cell membrane is found in all living organisms, including plants. Only found in plants and a few fungi, bacteria, and algae. Introduce in all types of cells, including humans, animals, plants, and bacteria.
What is a cell?In biology, the base unit that can live by itself and is made up of all living organisms and body tissues.
Photosynthesis occurs in chloroplasts; cell walls allow plants to be strong and upright; and vacuoles help regulate how cells handle water and other molecules.
Mitochondria provide metabolites for epigenetic modifications and other nuclear-associated activities, and mitochondrial proteins have been discovered in the nucleus.
The material or protoplasm within a living cell, excluding the nucleus, is referred to as cytoplasm.
Whereas the nucleus is a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material.
Thus, these are the basic differences between plant cell organelles cell membrane, cell wall, nucleus, cytoplasm, mitochondria, chloroplasts, and vacuole.
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if you measure the age of a fossil using 14c dating and determined its age to be about 17000 years old, how much of the rock should be made of 14N
Answers
Answer:
Geologists do not use carbon-based radiometric dating to determine the age of rocks. Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that. Carbon dating is used by archeologists to date trees, plants, and animal remains; as well as human artifacts made from wood and leather; because these items are generally younger than 50,000 years. Carbon is found in different forms in the environment – mainly in the stable form of carbon-12 and the unstable form of carbon-14. Over time, carbon-14 decays radioactively and turns into nitrogen. A living organism takes in both carbon-12 and carbon-14 from the environment in the same relative proportion that they existed naturally. Once the organism dies, it stops replenishing its carbon supply, and the total carbon-14 content in the organism slowly disappears. Scientists can determine how long ago an organism died by measuring how much carbon-14 is left relative to the carbon-12.
The percentage of 14C is close to 12%
Carbon-14 is a radioactive isotope chemical element characterized by containing 6 protons and 8 neutrons. Its main function is the dating of organic specimens because it is present in all organic materials.
This is because once an organism dies carbon-14 slowly decreases over year as the lifespam of carbon dioxide is between 5000 and 30000 years. The way it decreases is determined by a mathematical function, but to make it easier there are graphs like the one below that show the process.
According to the graph showing the amount of carbon in an organic material when a fossil is 17,000 years old, the percentage of Carbon - 14 is about 12%.
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. What causes a hurricane to form
will give brainliest to smartest answer
Answers
Answer:
For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.
Explanation:
In short pressure zones over warm ocean
Answer:
When warm moist air over the water rises, it is replaced by cooler air.
The cooler air will then warm and start to rise.
If there is enough warm water, the cycle will continue and the storm clouds and wind speeds will grow causing a hurricane to form.
Explanation:
I used to live in SW. Fl
hope this helps :)
In a certain breed of dogs, brown fur (B) is a dominant trait over yellow fur (b). Gregory owns a brown female. She produced a litter of offspring that includes two brown and two yellow puppies. The only thing Gregory knows about the male is that he was of the same breed. Which of the following represents the genotype combinations that are possible for Gregory’s dog and the father of this litter of puppies?
A. Mother = BB x Father = bb
B. Mother = BB x Father = Bb
C. Mother = Bb x Father = Bb
D. Mother = Bb x Father = bb
Answers
Answer:
C) Mother: Bb x Father: Bb
Explanation:
Tara is making a model of
the solar system for her class project. Which of
the following choices states the correct order in
which she should put the planets, starting with
the one closest to the sun
A: Earth, Mercury, Venus, Mars, Saturn, Jupiter, Neptune, Uranus
B: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
C: Venus, Mercury, Earth, Jupiter, Neptune, Uranus, Mars, Saturn
D: Mars, Mercury, Earth, Jupiter, Venus, Neptune, Saturn, Uranus
Answers
Answer:
B! That's the order of the planets!
Where is the melanocortin 1 receptor located, and what is its role in the cell?
Answers
help....................
Answers
Answer:
However, 8th, 9th and 10th ribs are known as false ribs because they do not join sternum directly and they are attached to the coastal cartilage of the 7th rib.
Select the most complete model that shows the cellular structures present in all living cells.
Answers
Answer animal cells
Explanation:
The most complete model that shows the cellular structures present in all living cells is option B. So, the correct option is (B).
What is Animal Cell?An animal cell is defined as the type of eukaryotic cell that lacks a cell wall and has a true, membrane-bound nucleus as with other unicellular organisms.
Animal cells are generally smaller than plant cells. Animal cells are irregular in shape due to the absence of a cell wall. But animal cells share other cellular organelles with plant cells as both evolved from eukaryotic cells.
Animal cells consist of following cell organelles:
Cell membraneNucleusNuclear membraneCentrosomeLysosomeCytoplasmGolgi ApparatusMitochondriaRibosomeEndoplasmic reticulumVacuoleNucleoporeThus, the most complete model that shows the cellular structures present in all living cells is option B. So, the correct option is (B).
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Fill in the blanks: When your cause-effect ________ can be used to evaluate a __________ about a phenomenon, scientists call it a ___________.
Answers
2Time
3expectatikns
will mark brainliest
Make a claim about the relationship between the following terms: DNA, gene, protein, life functions. Be sure to use evidence and explain your reasoning. *
Answers
2 Central dogma of life. Notes: Genes are DNA sequences instruct cells to produce particular proteins, which in turn determine traits. Chromosomes are strings of genes. Mutations are changes in gene's DNA sequence.
Identify how Newton's third law of motion was responsible for the astronaut's return to the space station.
Answers
Answer:
sorry i cant understand clearly
Explanation:
i hope its help more
Answer: The equipment will "push back" on the astronaut with the same amount of force.
Explanation: Newton's third law of motion can be summed up as "For every action, there is an equal and opposite reaction." This means that when the astronaut applies force to push the object, that object will apply an equal amount of force to the astronaut.
what make it animal or plant cell?
Answers
Explanation:
animals cell have plasma membrane not cell wall and don't have chlorophyll also. .
plant cell have chlorophyll and have plasma membrane and cell wall also .
hope this will be helpful to you.
plz mark my answer as brainlist plzzzz.
what is one abiotic factor that may contribute to the changes in populations of the honey bees?
Answers
Need help with this pls
Answers
Answer:
I can't see it it's blurry
Explanation:
Picture of the cell
Q.1 WHAT MAKES THAT BLOOD LOOK RED ...............????????
Answers
The diagram shows the process of osmosis in a beaker model. Only the water molecules could pass through the membrane by osmosis because water molecules________.
a) contain more hydrogen atoms than the other molecules
b) have more energy than protein molecules
c) can pass through the selectively permeable membrane
d) are more numerous than the protein molecules
Answers
Answer:
i think it is C correct me if am wrong