Page 1 - Cl8-Bio_CBQ_Reproduction in animals

SAI International School
Subject – Biology, Class-VIII
Topic- Reproduction in animals

Competency Based Worksheet

SL. No Question
1. Which statement best explains why internal fertilization is an advantage for land
animals?
(a) It requires less energy to produce sperm.
(b) It protects the fertilized egg from drying out.
(c) It increases the number of eggs laid.
(d) It allows offspring to be born fully developed

2. Read the given statements.
(i) IVF is a treatment for infertility when a woman is able to produce ovum however,
problems of the Fallopian tube make fertilisation difficult.
(ii) The animals that give birth to young ones or babies are known as oviparous animals.
(iii) Unicellular organisms reproducing by binary fission are referred to as 'immortals'
because actual death of the parent does not occur.
(iv) Snakes always exhibit external fertilisation
Which of the given statements are correct?
(a) (ii) and (iv) only
(b) (ii), (iii) and (iv) only
(c) (i) and (iii) only
(d) (i), (ii), (iii) and (iv)

3. Roslin Institute in Edinburgh successfully cloned a sheep. The name given to that sheep
was-
(a) Rosie
(b) Dolly
(c) Selvi
(d) Chelsa
4. Which reproductive method allows better survival of offspring in a harsh environment?
a) External fertilization
b) Internal fertilization
c) Asexual reproduction
d) Binary fission
5. The fusion of male and female gametes is called:
a) Fertilization
b) Germination
c) Pollination
d) Budding
6. Identify the process in the given diagaram