HIGH ORDER THINKING SKILLS
Reproduction in Animals
Reproduction in Animals
1. Define reproduction. What are the two modes of reproduction?
2. What are the female reproductive organs?
3. What do mean by test tube baby?
4. Explain the structures of sperm and ovum.
5. Explain various modes of asexual reproduction.
6. Explain the life cycle of a frog
7. How asexual reproduction in hydra is carried out? Explain with diagram.
8. Explain the life cycle of a silk worm.
9. Explain metamorphosis.
10. What is the function of tail?
11. Which organ produces egg in female human body?
12. Give two examples of oviparous animals.
1. The animals that produce new young ones are known as
I. Oviparous
II. Viviparous
III. Both
IV. None of these
2. Tadpole is the developing stage of which of these
I. Dogs
II. Cats
III. Frogs
IV. Humans
3. Where does the fusion of male and female gametes generally take place?
I. Fallopian tube
II. Ovary
III. Uterus
IV. Zygote
4. The cell formed after fertisation is called
I. Foetus
II. Zygote
III. Embryo
IV. None of these
5. Egg are formed in the
I. Testes
II. Penis
III. Ovary
IV. None of these
6. How many modes of reproduction are there in animals?
I. One type
II. Two types
III. Three types
IV. Four types
7. A sperm consists of
I. One part
II. Two parts
III. Three parts
IV. Four parts
8. Foetus is the
I. Well developed embryo
II. Developing embryo
III. A zygote
IV. Male gamete
9. Viviparous organisms are the ones which
I. Produce eggs
II. Produce young ones
III. Both I and II
IV. None of these
10. Cloning is a mode of
I. Sexual production
II. Asexual production
III. Both I and II
IV. None of these
ANSWERS
1. II
2. III
3. I
4. II
5. III
6. II
7. III
8. I
9. II
10. II
1. Reproduction is a very important process for living organisms. It facilitates the continuation of a species.
2. Sexual reproduction takes place in human beings. Male partner releases sperm inside female�s body. Sperms and ovum fuse together in fallopian tube to form zygote. During this process the nucleus of sperm fuses with the nucleus of ovum to form a single nucleus. This entire process is called fertilization.
3. (a) in female body
(b) metamorphosis
(c) one
4. (a) false
(b) true
(c) true
(d) false
(e) true
(f) false
(g) false
(h) true
(i) true
(j) false
5.
| Zygote | Foetus |
| It contains single cell. It is formed by the fusion of ovum and sperm. | It contains many cells. It is formed by repeated divisions of zygote. |
6. Asexual reproduction is a mode of reproduction were only single parent is involved. It takes place in different forms: (i) Buddings- This process takes place in hydra and bacteria. A part of these organisms starts growing further and bulging out and gradually separates from the organisms when fully developed.
(ii) This type of reproduction take place in amoeba. The nucleus of amoeba gets divided into two followed by division of their bodies. Each part gets a separate nucleus and develops into a separate amoeba. This type of reproduction is common in unicellular organisms.
7. Uterus
8. The transformation of larva into an adult through drastic changes is called metamorphosis.
9.
| Internal fertilisation | External fertilisation |
| (i) Takes place inside the body of female (ii) Sperms are released by the male inside female�s body | (i) Takes place outside the body of female (ii) Sperms are released in open |
1. What is metamorphosis?
2. What is fertilisation? Give examples
3. Draw a well labeled diagram of a female reproductive system
4. Explain the life cycle of a frog with diagram.
5. Explain the two modes of reproduction
6. What is ovum?
7. What is a male gamete?
8. Where does fertilization take place in human body.
9. Draw the structure of a sperm
10. What are the various methods of asexual reproduction?
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