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Which of the following is a parasitic relationship?

A. Barnacles on the side of a whale
B. Insects hiding in the leaves of a tree
C. Birds picking fleas off a bear's back
D. Flies biting a cow

Respuesta :

tennisperson1234
A parasitic relationship is when a parasite is living off of the host animal and harming it. The correct answer would be D)Flies biting a cow. The parasite(fly) is harming the host animal(cow). Therefore, "D" would be the correct answer.

I hope this helps!
Plebdough
The correct answer is D. Flies biting a cow, because it is harming the host.

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