The eon that we are currently in is the
a. oligocene
b. phanerozoic
c. archean
d. proterozoic

D. Phanerozoic  is the answer

This is when you would expect to find fossil evidence of the evolution of insects. Animals are multicellular and have shells during this eon. Insects have exoskeletons made of chitin

you probably know the answer. stop asking stupid questions and making me waste my time. j.k. ; )   b.t.w. what are three ratios equivalent to 5 : 11? thx

answer; environmental science;