How do insects differ from other arthropods?
A. They have an outside skeleton.
B. They have three body divisions and three pairs of legs.
C. They have two body divisions and four pairs of legs.
D. They have three body divisions and two pairs of legs.
A. They have an outside skeleton.
B. They have three body divisions and three pairs of legs.
C. They have two body divisions and four pairs of legs.
D. They have three body divisions and two pairs of legs.
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Answer:
B.
Explanation:
Insects are distinguished from other arthropods by their body, which is divided into three major regions: (1) the head, which bears the mouthparts, eyes, and a pair of antennae, (2) the three-segmented thorax, which usually has three pairs of legs (hence “Hexapoda”) in adults and usually one or two pairs of wings, and (3) the many-segmented abdomen, which contains the digestive, excretory, and reproductive organs.