All Animals,whether Large or Small,have

Question

All animals,whether large or small,have
A)an external body surface that is dry.
B)a basic body plan that resembles a two-layered sac.
C)a body surface covered with hair to keep them warm.
D)the ability to enter dormancy when resources become scarce.
E)each living cell in contact with an aqueous medium.

Accepted Answer

All animals have each living cell in contact with an aqueous medium, as they all require water for survival and all cellular processes occur in an aqueous environment. The other options are all incorrect: (A) many animals have moist body surfaces, such as amphibians and some reptiles; (B) animals have a variety of body plans, not all of which resemble a two-layered sac; (C) not all animals are covered with hair, and not all hair is used for warmth; (D) not all animals have the ability to enter dormancy, and this is not a universal characteristic of animals.