Directions: Choose the letter of the correct answer. Write the letter on a
separate sheet of paper.
1. Why do mammals, birds, fish, amphibians, and reptiles belong to vertebrates?
A. Their bodies are covered with fur and scales
B. They can adapt with its changing environment.
C. Some vertebrates body temperature change while some do not
D. They have backbone or spinal column that serves as framework of their body
2. How are invertebrates different from vertebrates?
A. Invertebrates are animals without backbone while vertebrates are animals with
backbone
B. Invertebrates are soft- bodied animals while vertebrates are hard-bodied
animals
C. Invertebrates are warm while vertebrates are cold blooded animals
D. Invertebrates live on land while vertebrates live in water
3. Which of the following explains why mammals and birds are called warm-blooded
animals?
A. Their body temperature is stable and constant
B. Their temperature changes with their environment
C. They depend on the temperature of their surroundings
D. They eat often to make their body temperature change
4. How are mammals distinct from the other vertebrate group?
A. They have fur, wings and they can fly
B. Mammals are warm-blooded and have mammary gland
C. They are hatched from eggs and live both land and water
D. They have limbs adapted for their varied movements like running, swimming,
climbing, flying, or gliding​