A. Abrasion
Reason - cause by scraps on rough surface which breaks skin on outer layer.
Answer:
B (nematocysts)
Explanation:
A nematocyst is a long, thin, coiled stinger. It has a barb that may inject poison. These tiny poison "darts" are propelled out of special cells. They are used to attack prey or defend against predators.
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Answer:
B
Explanation:
The population size increases
