Studying the anatomy of different organisms allows scientists to determine how different species have evolved over time. which type of anatomic structure are bird wings and butterfly wings when compared to each other? a-vestigial b-homologous c-analogous d-heterologous

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

a. to encourage apoptosis