Despite your best attempts to convince her otherwise, your friend is very afraid of spiders and all "bugs," which to her means insects. When you note that spiders are not insects, she claims they are the same thing. You finally convince her that spiders are not insects because, for one thing, spiders
A. lack an exoskeleton.
B. are segmented.
C. have a calcium-carbonate layer outside the exoskeleton.
D. have two body segments joined by a pedicel.
Answer: D
Biology & Microbiology
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