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:
Cell theory states that B) All living things are made up of cells and A) cells come from other living cells.
B or d.... hope this helps:)
Answer:
Element
Explanation:
Is a substance that can't be broken down into other substances.