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lord [1]
2 years ago
6

Which of the following is not one of the three major structures of coral reefs? a. Planulae b. Fringing c. Barrier d. Atoll Plea

se select the best answer from the choices provided A B C D.
Biology
1 answer:
nikklg [1K]2 years ago
6 0

Coral reefs are part of the marine and oceanic ecosystem that are hard and made up of calcium carbonate. Planulae is not the major structure of coral reefs.

<h3>What are coral reefs and Planulae?</h3>

Coral reefs are the hard calcium structures that are of three major types barrier, fringing and atoll.  They feed on the planktons and algae that are the small structures inhabiting them.

Planulae is a freely swimming larvae of the jellyfish and other species of Ctenophores. They are solid, flat and have cilia over their body.

Therefore, option a. Planulae is not a structure or type of coral reef.

Learn more about coral reefs here:

brainly.com/question/2108897

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The correct answer is option b. "cause a change in the reading frame of mRNA codons".

Explanation:

Frameshift mutations are among the most drastic mutations because in most cases, result in the translation of a completely different protein. Frameshift mutations are the result of insertions or deletion of one or more nucleotides, resulting in a change in the reading frame of mRNA codons. In consequence, the ribosome translates a different amino acid sequence, based on the new reading frame of mRNA codons.

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8 0
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Ne4ueva [31]

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