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Verizon [17]
3 years ago
14

The countercurrent arrangement of blood vessels is an adaptation that allows the goose to ________.

Biology
1 answer:
fredd [130]3 years ago
3 0

Answer:

Conserve heat in its core when the goose is swimming in cold water

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Reactions that require CO₂ take place in ________.
Alex787 [66]

Answer:

The correct answer is: A) the Calvin Cycle alone.

Explanation:

These reactions happen in cells capable of photosynthesis.

The only out of these reactions that require CO2 to take place is the Calvin Cycle. The Calvin Cycle is a series of biochemical processes that occur in the chloroplasts during photosynthesis. <u>The Calvin Cycle uses carbon dioxide (CO2) and water to produce glucose</u>, which will give energy to the cells.

The light reactions occur during photosynthesis in the presence of light and involving photophosphorylation. The light reaction does not make use of CO2, as it takes solar energy and converts it into NADPH and ATP.

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Which of the following is considered a secondary source?
tatiyna
Since a secondary source is a source written after an event has occurred, I want to say that the answer is A. Hope this helped!<span />
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Which statement BEST describes why plant cells have a cell wall, but animal cells do not?
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The main reason would be because they would have the ability to ... helps them get the sunlight and go through photosynthesis

Explanation:

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List and describe the role of the 3 types of rna.
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<span>There are three RNAs with a role in the synthesis of protein.</span>

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tRNA or transfer RNA is the molecule with the main function in translation by "decoding" the mRNA message during this process. Each type of amino acid has its own type of tRNA and also has a three-base sequence (anticodon) that can bind complementary with the codons in the mRNA.

rRNA or ribosomal RNA is a main component of ribosomes. rRNA associates with a set of proteins to form ribosomes which catalyze the assembly of amino acids into polypeptide chains (protein).

 

<span>There are also a few more types of RNA which have a regulatory function like, microRNA or siRNA.</span>

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