Question

Answer the following questions by choosing correct option.
a. Which special cells are present in the body of sponges (Porifera)?

1. Collar cells
2. Cnidoblasts
3. Germ cells
4. Ectodermal cells

b. Which of the following animal's body shows bilateral symmetry?

1. Star fish
2. Jelly fish
3. Earthworm
4. Sponge

c. Which of the following animals can regenerate it’s broken body part?

1. Cockroach
2. Frog
3. Sparrow
4. Star fish

d. Bat is included in which class?

1. Amphibia
2. Reptilia
3. Aves
4. Mammalia

Answer 1

a. Collar cells are present in the body of sponges (Porifera).
b. Earthworm shows bilateral symmetry.
c. Star fish can regenerate it’s broken body part.
d. Bat is included in the class Mammalia.