Question

Why was the evolution of a coelom a critically important innovation for animals?
a) The coelom can act as a hydrostatic skeleton.
b)The coelom gives rise to a complex nervous system.
c)The coelom made it possible for animals to colonize land.
d)The coelom separates vertebrates from invertebrates.

Answer 1

Why was the evolution of a coelom a critically important innovation for animals?

The correct answer i option A.

a) The coelom can act as a hydrostatic skeleton

Coelom is a hollow, fluid-filled cavity found in many living organisms. This coelom acts as a protective cushion for their internal organs. This is partially lined with mesoderm.