1. A remora is a fish that has an adhesive disk on the back of its head that it uses
to attach itself to a large shark. When food floats away from the shark's mouth
as it feeds, the remora collects the scraps. Drawings of a shark with a remora
attached and a remora's adhesive disk are shown below. The relationship
between the remora and the shark is an example of:
a competition
b. commensalism
c. predation
d. parasitism
2. Parrotfish are herbivores that are found in coral reefs. To escape predation, a
parrotfish will graze with a rabbitfish, which has venomous spines at the end of
its pelvic fins. The rabbitfish does not benefit from this relationship. Which type
of relationship do the parrotfish and the rabbitfish have in the coral-reef
environment?
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Answer:
1 B.commensalism
2 commensal
Explanation:
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