Assignment C
1. How are the modes of reproduction different in unicellular and multi-cellular organisms?
2. How does reproduction help in providing stability to population of species?
3. What could be the reasons for adopting contraceptive methods?
4. What is the importation of DNA copying in reproduction?
5. Why is variation beneficial to the species but not necessarily for the individual?
6. How will an organism be benefited if it reproduces through spores?
7. Can you think of reasons why more complex organisms cannot give rise to new individuals
through regeneration?
8. Why vegetative reproduction is practiced for growing some type of plants?
9. Why is DNA copying an essential part of the process of reproduction?
10. What are the changes seen in girls at the time of puberty?
11. What is the role of the seminal vesicles and the prostate gland?
12. How is the process of pollination different from fertilization?
13. How does the embryo get nourishment inside the mother’s body?
14. Show by a series of labeled diagram, the manner in which reproduction in Hydra.
15. Describe regeneration.
16. Define the terms unisexual and bisexual flowers by giving one example of each.
17. Leaves of the bryophyllum fallen on the ground produce new plants whereas the leaves of rose
do not. Why?
18. Why does menstruation occur?
19. How does reproduction help in providing stability to populations of species?
20. What is advantages of sexual reproduction over asexual reproduction?
21. What are function performed by testis in human beings.?
22. Differentiate between natural and artificial vegetative propagation.
23. Draw a diagram of a flower to show its male and female reproductive parts. Label on it :
a. the ovary
b. the anther
c. the filament
d. the stigma .
24. Describe the fertilization in flower.
25. What is meant by pollination? How it takes place?
1. How are the modes of reproduction different in unicellular and multi-cellular organisms?
2. How does reproduction help in providing stability to population of species?
3. What could be the reasons for adopting contraceptive methods?
4. What is the importation of DNA copying in reproduction?
5. Why is variation beneficial to the species but not necessarily for the individual?
6. How will an organism be benefited if it reproduces through spores?
7. Can you think of reasons why more complex organisms cannot give rise to new individuals
through regeneration?
8. Why vegetative reproduction is practiced for growing some type of plants?
9. Why is DNA copying an essential part of the process of reproduction?
10. What are the changes seen in girls at the time of puberty?
11. What is the role of the seminal vesicles and the prostate gland?
12. How is the process of pollination different from fertilization?
13. How does the embryo get nourishment inside the mother’s body?
14. Show by a series of labeled diagram, the manner in which reproduction in Hydra.
15. Describe regeneration.
16. Define the terms unisexual and bisexual flowers by giving one example of each.
17. Leaves of the bryophyllum fallen on the ground produce new plants whereas the leaves of rose
do not. Why?
18. Why does menstruation occur?
19. How does reproduction help in providing stability to populations of species?
20. What is advantages of sexual reproduction over asexual reproduction?
21. What are function performed by testis in human beings.?
22. Differentiate between natural and artificial vegetative propagation.
23. Draw a diagram of a flower to show its male and female reproductive parts. Label on it :
a. the ovary
b. the anther
c. the filament
d. the stigma .
24. Describe the fertilization in flower.
25. What is meant by pollination? How it takes place?
