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77julia77 [94]
3 years ago
5

7. Sister chromatids are

Biology
2 answers:
Dvinal [7]3 years ago
5 0
3) tightly linked together at the centromere
RoseWind [281]3 years ago
4 0

Answer:

3!

Explanation:

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3 years ago
Proteins and nucleic acids both play vital roles in the structure and function of cells.
Eva8 [605]

Answer:

Part A: Proteins are made from amino acid monomers. There are 20 different types of amino acids which make up all the proteins of the body. The amino acids are made up of a carbon atom which is joined to an amino group, a carboxyl group and a variant group, known as R. Nucleic acids are made up of 5 carbon sugar, phosphate group and nitrogenous bases.  Hence, nucleic acids are made up of nucleotides.

Part B: Protiens are important molecule which carry out various functions of the body. They are involved in regulation of various body process. Some proteins are involved in the transportation of various molecules. Other type of proteins are involved in various immune functions and hence protect the body. For example, antibodies are proteins which defend the body against pathogens.

Nucleic acids are involved in the storing and expressing of genetic information. They also direct the body for protein synthesis.

7 0
3 years ago
Each year, as winter approaches, some species become inactive. They may sleep and use their body’s fat for energy during the col
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hibernation

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6 0
3 years ago
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What will happend if 50% of the worlds forest dies out?​
melomori [17]

Answer:

not enough clean oxygen being produced for us to breathe, loss of habitat for countless species causing them to possibly go extinct.

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A man who donates sperm to a sperm bank is maximizing his __________________ while minimizing his _____________. By shopping thr
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inclusive fitness, parental investment, eugenics

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