Question

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Answer 1

Explanation:

9)

a)the branch of science concerned with classification, especially of organisms.

b) a specialized cell in the tentacles of a jellyfish or other coelenterate, containing a barbed or venomous coiled thread that can be projected in self-defence or to capture prey.

10)

a) - Hydra

b) - tapeworm

c) - starfish

d) - Snail

11)The respiratory organs of amphibians are gills, lungs, skin and pharyngeal region.

12)All amphibians spend part of their lives in water and part on land, which is how they earned their name—“amphibian” comes from a Greek word meaning “double life.” These animals are born with gills, and while some outgrow them as they transform into adults, others retain them for their entire lives.