Which trilobite characteristic did not change through time? a. shape of eyes c. number of body segments b. 3-lobed body d. number of spines d. number of spines is a trilobite characteristic does not change through time.

The right answer is the lobed body.

The name trilobite comes from the subdivision of the body into three longitudinal lobes:

A medial lobe, the rachis,

And two lateral lobes, the pleura.

There is also a subdivision into three regions from front to back: the cephalon ("head"), the thorax and the pygidium ("tail").

there’s no image attached but i can if you want: )

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.