C. Mutagens causes mutations.
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:
D: faulting hope i could help
Answer: the answer is A:Transpiration
Explanation:
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