Most of the body features found in invertebrate evolved 2.during which of the following periods?
A. Jurassic
B. Cambrian
C. Cretaceous
D. Permian

Question

Most of the body features found in invertebrate evolved 2.during which of the following periods?
A. Jurassic
B. Cambrian 
C. Cretaceous 
D. Permian

anonymous · Answer

This is posted in the math section, but it's not about math, so it should either be moved or deleted. The answer is the Cambrian, though - this was during the time period referred to as the "Cambrian Explosion."

anonymous · Answer

B. I think its that but you might want to check it and can you fan me and I'll give you a medal or something