How do organisms reproduce Worksheets

How do organisms reproduce Worksheet-4

1. This is the unicellular organism, which develops protective wall during unfavourable conditions and on getting favourable conditions splits to form many new organisms at the same time. Identify the organism.

A. Paramecium                             B. Amoeba

C. Plasmodium                             D. Leishmania

2. Which of the following statements is/are not true about vegetative propagation in plants?

(i) It makes possible the propagation of some seedless fruit plants like banana, oranges, grapes etc.

(ii) It is the mean to produce genetically identical off-springs.

How do organisms reproduce Worksheet-5

11. Each ovule consists of a large oval shaped cell called the embryo sac and the mature embryo sac contains ______ nuclei.

A. Two                B. Three             C. Five                D. Eight

12. What does this diagram show?

A. Transfer of pollen grains to stigma

B. Germination of pollen grains

C. Fertilization of gametes

How do organisms reproduce Worksheet-6

Subjective questions:

1. Name the type of fission carried out by Amoeba.

2. Write the expanded form of AIDS.

3. What is vegetative propagation?

4. List two functions performed by ovaries in a human female.

5. Write the full form of IUCD.

6. Write the full expansion of HIV.