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Alex73 [517]
3 years ago
6

I need help from 20-23

Biology
1 answer:
Mashcka [7]3 years ago
3 0
20. The answer is 1 (Precambrian)
21. The answer is 4 (Pennsylvanian)
22. The answer is 2 (Bony Fishes, Dinosaurs, and Mammals)
23. The answer is 2 (Reptiles)
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Which is not something that occurs in translation? A codon and an anticodon pair. A peptide bond is created. A molecule of mRNA
Veseljchak [2.6K]

Answer:

A molecule of mRNA is formed.

Explanation:

Translation is the second process that occurs in gene expression. It is the process by which the information encoded in the mRNA transcript is used to synthesize a protein.

The mRNA nucleotide sequence is read in a group of three nucleotides called CODON. Each codon specifies an amino acid. Translation, which occurs in the ribosomes (cytoplasm), reads the codon with an anticodon using the complementary base pairing rule i.e. A-U, G-C. This means that a CODON-ANTICODON pairs.

The anticodon carries a corresponding amino acid to the polypeptide sequence. A peptide bond is formed when two amino acids joins together in a condensation reaction.

Note: A molecule of mRNA is formed during transcription

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3 years ago
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How can fear be a barrier to help seeking​
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Explanation:

Fear is a barrier as people fear being judged for things as there might be a stigma attached to it. When people are judged their problem isn't solved and instead worsened and they will feel compelled to keep their problems to themselves.

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3 years ago
Choose the definition of: Invertebrates
yanalaym [24]
Without backbone or having no backbone is considered as INVERTEBRATES.

hope its help...

--kcirejay:♥)
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Please help<br> Explain why a lack of gravity might cause muscles to weaken
Elodia [21]

Answer:

Lack of gravity causes you to use less work to move your muscles.

Explanation:

If on Earth your arm weighs 3 pounds, the muscle will only have to move 3 pounds of force. For example, if you were to go on the moon, your arm would have the same mass but there would be less gravity pulling it dow. So now your muscles only need to pull 1 pound. Over extended periods, you would be working less, thus not using your muscles to fullest potential and in result you would get weaker.

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True or false A hypotheses has been tested many times by different independent researchers but a theory has not
hoa [83]

Answer:

true

Explanation:

yea a theory has not tested hypothesis

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3 years ago
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