Do they have a picture for this question since you said "Shows"?
Answer:
Chitin
Explanation:
This glucose derivative is in fact the main building block of cell walls in not only arthropods (including the shrimp), but also fungi and insects, and also has a structural function in the scales of fish. The most similar commonly-known substance in terms of function is keratin, which makes up our hair and nails.
Answer:
helps regulate the rate at which air changes temperature
Structure A is the mitochondria
Haploid cells! Hope this helps :)
