How do organisms reproduce Worksheets

How do organisms reproduce Worksheet-13

Subjective questions:

61. What is the outcome of fertilisation? What is fertilisation known as?

62. Gonads have dual functions. What are their secretions?

63. State the exact functions of the fallopian tube.

64. Why is the female reproductive system more complex than the male reproductive system?

65. Why is it said that' sexual reproduction promotes, diversity of characters in the offsprings'?

How do organisms reproduce Worksheet-14

Subjective questions:

1. (i) Which are the two main types of reproduction in living organisms?

(ii) Classify the following under these two types: Amoeba, Frog, Earthworm, Yeast.

2. What are the male and female gonads in human beings? State any two functions of each of them.

3. What is vegetative propagation? When is it used? Name three methods of vegetative propagation.

4. Differentiate between 'self-pollination' and 'cross-pollination'. Describe 'double fertilisation in plants.

How do organisms reproduce Worksheet-15

Subjective questions:

31. What criteria and precautions should be taken into consideration while selecting stock and scion?

32. Describe how vegetative propagation is done in the following plants :

(a) Ginger          (b) Sugarcane   (c) Citrus           (d) Bryophyllum

33. Explain the main characters of self-pollinated plants.

34. Explain the method of vegetative reproduction in mint, sweet potato, Dahlia, onion and Chrysanthemum.