Answer:
The beating or fanning movements of three pairs of maxilliped flagella in crabs and crayfish modify exhalent gill currents while drawing water over chemoreceptors on the head. They play an integral part both in signalling by distributing urine odours, and in active chemosensation.
Explanation:
Answer:
Hormones
Explanation:
Hormones is the term used for chemical secretion of endocrine glands responsible for changes taking in the body.
I’d say that it’s inventive
When the precapillary sphincters are relaxed, that is open, blood will pass through the TRUE CAPILLARIES.
When blood are flowing through the true capillaries they take part in exchange with the tissue cells. When the precappilary sphincters are closed, blood normally flow through the shunting, thus bypassing the tissue cells.
I think it is A but not 100% sure. Think of an enzyme like a key unlock the lock is the protein. And to activate getting inside your car or house you have to fit the key into the lock.
