1. Which of the following is the principle in the classification of animals as to vertebrates or
invertebrates?

a. way of production
b. kind of body covering
c. presence or absence of backbone
d. food eating and ways of getting food

2. Which of the following describes a mammal?

a. It is covered with feather.
b. It lives both in land and water.
c. It has mammary gland to feed its young.
d. It produces asexually

3. Which of the following is not true about birds?

a. All birds can fly.
b. All birds have wings.
c. All birds are covered with feathers.
d. All birds are warm-blooded animals

4. Which is not true about amphibians?

a. They are grouped into two, the tailed and tailless

b. They are warm-blooded

c. They have smooth, moist and scale less

d. They lay eggs in water

5. What does warm-blooded mean?

a. The body temperature is stable or constant even if animals are in extremely hot or
cold environment.

b. The animal's body temperature changes with their environment.

c. The body temperature of an animal is always hot.

d. The body temperature of an animal becomes warm when exposed to heat.​