Evolutionary Adaptations That Help Some Animals Directly Exchange Matter Between

Multiple Choice

Evolutionary adaptations that help some animals directly exchange matter between the cells of their body and the environment include ________.

A) a gastrovascular cavity, a two-layered body, and a torpedo-like body shape
B) an external respiratory surface, a small body size, and a two-cell-layered body
C) a large body volume, a long, tubular body, and a set of wings
D) an unbranched internal surface, a small body size, and thick covering