Reproduction in Animals Quiz - ICSE Class 8 Science

Free practice quiz: Reproduction in Animals (ICSE Class 8 Science). 41 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This ICSE Class 8 Science practice quiz has 41 multiple-choice questions on Reproduction in Animals, and 41 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. The fusion of male and female gametes is known as:

   1. Ovulation
   2. Gestation
   3. Fertilization
   4. Menstruation
   Show answer

   Answer: C. Fertilization

   Fertilization is the process where a male gamete (sperm) fuses with a female gamete (ovum) to form a zygote.

2. Oviparous animals are those that:

   1. Give birth to live young
   2. Lay eggs
   3. Reproduce asexually
   4. Undergo external fertilization
   Show answer

   Answer: B. Lay eggs

   Oviparous animals are animals that reproduce by laying eggs, from which offspring develop.

3. What structure is formed when a sperm fuses with an ovum?

   1. Embryo
   2. Zygote
   3. Gamete
   4. Fetus
   Show answer

   Answer: B. Zygote

   The zygote is the initial cell formed when two gametes (sperm and egg) fuse during sexual reproduction.

4. Which of the following is a characteristic of sexual reproduction?

   1. Only one parent is involved
   2. Offspring are genetically identical to the parent
   3. Requires fusion of gametes
   4. Faster than asexual reproduction
   Show answer

   Answer: C. Requires fusion of gametes

   Sexual reproduction always involves the fusion of male and female gametes, leading to genetic diversity.

5. Which of the following organs is primarily responsible for producing female gametes (ova) and female sex hormones?

   1. Uterus
   2. Fallopian tubes
   3. Ovaries
   4. Vagina
   Show answer

   Answer: C. Ovaries

   The ovaries are the primary female reproductive organs, producing eggs and secreting hormones like estrogen and progesterone.

More questions in this quiz

Answers and explanations are in the full quiz.

1. In mammals, fertilization typically occurs:
2. Which of the following is an example of external fertilization?
3. What is the primary function of the testes in male animals?
4. The female gamete, or egg cell, is produced in the:
5. When a single-celled organism divides into two identical daughter cells, this process is called:
6. In Hydra, a new organism develops from an outgrowth or bud on the parent body. This is an example of:
7. The process by which a tadpole transforms into an adult frog is called:
8. Viviparous animals are characterized by:
9. What is the site of embryonic development in viviparous mammals?
10. Which type of reproduction in animals involves the development of an embryo from an unfertilized egg?
11. What is the male gamete in animals?
12. What is the female gamete in animals?
13. In birds, fertilization is internal. Where does the embryo develop after fertilization?
14. What is the term for the period of development of a mammal inside its mother's uterus?
15. Which animal reproduces by internal fertilization and lays amniotic eggs?
16. In which process does the animal body repair or replace damaged tissues or organs?
17. The process of the male gamete penetrating the female gamete is called:
18. Which of the following is an example of a viviparous animal?
19. The development of a baby organism from a fertilized egg inside the mother's body is termed as:
20. What is the primary function of the placenta in mammals?
21. In which type of asexual reproduction does an organism split into two or more parts, and each part grows into a new organism?
22. The duct that carries sperm from the testes to the urethra is called the:
23. Which of the following animals exhibits external fertilization and lays numerous eggs in water?
24. The period from fertilization to birth in mammals is called:
25. A type of asexual reproduction where an organism develops from a bud that detaches from the parent body is known as:
26. Which of the following is a disadvantage of asexual reproduction?
27. The process of sperm production in males is called:
28. In animals that reproduce sexually, the union of a sperm and egg cell results in the formation of a:
29. What is the term for the process where an embryo develops inside an egg that has been laid by the mother?
30. Which of these animals reproduces asexually by binary fission?
31. The long, coiled tube where sperm mature and are stored is called the:
32. What process allows a flatworm, like Planaria, to reproduce asexually by splitting into several pieces, with each piece regenerating into a new individual?
33. Which hormone plays a crucial role in the development of secondary sexual characteristics in males?
34. What is the tube that carries the egg from the ovary to the uterus called?
35. In birds, after internal fertilization, the zygote undergoes rapid cell division and forms an embryo. This embryo then develops within an egg that is laid by the mother. This describes:
36. The process by which the male and female reproductive cells fuse is called:

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