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sweet [91]
3 years ago
12

What are homologous structures in different species evidence of?

Biology
1 answer:
arlik [135]3 years ago
7 0
A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor
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What term is used to describe 100’s or 1000’s of amino acids chemically combined?
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Answer:

Polypeptide

Explanation:

Amino acids are the building block and simplest unit of protein molecules. The structural composition of each amino acids is made up of an amine group (-NH2), a carboxylic acid group (-COOH), a hydrogen atom (H) and a R side chain that differentiates every amino acid from one another.

In a reaction process called condensation, amino acids are chemically joined together via the amine group of one and the carboxylic group of another. This process releases water molecule (H20) to form a bond called PEPTIDE bond between the amino acids. Several amino acids in their 100’s or 1000’s that are chemically joined this way forms a POLYPEPTIDE chain, which in turn forms the protein molecule.

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SVEN [57.7K]

(hi, i dont know about this one personally, but i found an answer somewhere else on the internet thatll hopefully help u)

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