Question

Fishes have _______ body shape that is smaller at both ends than in the middle.
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Answer 1

Question:

Fishes have _______ body shape that is smaller at both ends than in the middle.

Answer:

Fishes have $\boxed {\sf {\orange {streamlined}}}$ body shape that is smaller at both ends than in the middle.

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⭐KNOWLEDGE BOOSTER

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What is drag?

Drag is the frictional force that is exerted by fluids (liquids and gases) on an object moving through fluids.

What is friction?

Friction is a type of contact force that always opposes the motion.

Why fishes have a streamlined body shape?

Fishes have a streamlined body shape so as to reduce drag. As fishes swim in water, water exerts drag on the body of the fishes, which slows down their pace. So as to prevent the effect of drag on fishes, and to help them swim easily, fishes have a streamlined body shape, because water can flow easily past the body of the fishes.

$\sf \red {☆NOTE:}$ To know, how streamlined shape looks like, refer to the given attachment.

Even birds, cars, aeroplanes, etc. have streamlined shape to reduce drag.