Question

b) Fleas are difficult to squish because they __________
c) Why is it difficult to pull off the feas?
d) Fleas can jump__________
times in a row.​

Answer 1

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b."A flea has a very hard exoskeleton, which means the body is covered by a tough, tile-like plate called sclerite. Because of these plates, fleas are almost impossible to squish." From this we can understand that the sclerite makes flea difficult to squish.

c.They have piercing-sucking mouthparts and spines on the body projecting backward. They also have a distinct row of spines on the face known as a genal comb. These backward-facing spines lock into hairs, which makes fleas difficult to pull out of the fur of animal.

d.10,000