If similarities between two structures in different organisms reflect common ancestry, these structures are

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a)psychiatry b)physics c)botany d)biology

This is the main structural axis of the plant that supports leaves, flowers and fruits; transports fluids; stores nutrients and produces new tissue.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?