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stealth61 [152]
3 years ago
7

Hey y'all can you help me with a biology question, would really appreciate it :)

Biology
1 answer:
jekas [21]3 years ago
5 0

B. Chitin- its a hard and tough substance that occurs widely in nature, particularly in the shells (exoskeletons) of arthropods such as crabs.

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The fastest moving seismic wave
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Individuals without AFS have a glutamic acid at position 487 on the ALDH2 protein, whereas individuals with AFS have a lysine at
azamat

Answer:

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