Question

a table of arachnid and insect characteristics is shown. which characteristic could be used to distinguish between arachnids and insects?

characteristic	arachnids	insects
antennae		x
simple eyes	x
compound eyes		x
jointed legs	x	x

body segments
jointed legs
presence of eyes
presence of antennae

Explanation:

Examine the table. Body segments, jointed legs are common to both. Presence of eyes is not a differentiator as both have some form of eyes. Antennae are present only in insects, not in arachnids.

Answer:

presence of antennae