Which of the following was not an adaptation for animals to live on land?
A) internal fertilization
B) egg shell
C) embryo development within the female
D) external respiratory surfaces
E) skeletal system and muscles

Question

Quizplus · Accepted Answer

External respiratory surfaces are more typical of aquatic animals, as they rely on water for gas exchange. Land animals have adaptations like lungs for breathing air.

Which of the Following Was Not an Adaptation for Animals