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lord [1]
3 years ago
14

DNA and RNA are A. proteins. B. lipids. C. starches. D. nucleic acids.

Biology
1 answer:
AnnyKZ [126]3 years ago
4 0
I believe the answer to this is D. 
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Does the oxygen that exits photosynthesis enter as CO2? Explain.
liubo4ka [24]

Answer:

Yes

Explanation:

Plants extract CO2 from the air and also use sunlight and water as the reactants of the process photosynthesis. Photosynthesis then produces Glucose and Oxygen. Oxygen is rid of the plant.

8 0
2 years ago
A population of mussels was observed in a particular ecosystem. Crabs have recently been observed occupying this ecosystem, whic
Zina [86]

Mussels are molluscans and are freshwater animals. The change in the environment led to new traits of mussels, it underwent natural selection and the thick shells have high chances of survival.

<h3>What is natural selection?</h3>

Natural selection is a process of nature that eliminates the organism with less survival and unfit traits while selecting the organisms with better traits of survival in the altered conditions.

The arrival or the introduction of the crabs in the environment altered the previous habitat of the mussels and led to the adaptation of the better trait quality in the mussel species.

The trait of the thick shells underwent natural selection as they were favoured for the changed conditions. The mussel having thick shells have high chances of survival over thin-shelled mussels as the crab will find it hard to attack the thick-shelled mussels.

Therefore, option A. change in environment, option B. natural selection and option E. chances of survival are the correct statements.

Learn more about the natural selection here:

brainly.com/question/10715606

6 0
1 year ago
Read 2 more answers
What molecule is the source of information for transcription.
Grace [21]

DNA is the molecule, which is the source of information for transcription.

• During the process of transcription, RNA polymerase is an enzyme, which is accountable for copying a sequence of DNA into a sequence of RNA.

• The RNA polymerase monitors the phenomenon of transcription.

• At the time of transcription, the information is stored within a molecule of DNA, which is further copied into a new molecule of messenger RNA.

Thus, the correct answer is DNA.

To know more about:

brainly.com/question/16512679

7 0
2 years ago
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HELP◑﹏◐!
exis [7]
The answer is d I juss took the test
5 0
3 years ago
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Which statement is not true about chicken-pox?
motikmotik

Answer:

where is your statements

4 0
2 years ago
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