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Chapters1 - Chemical Reactions and Equations
2 - Acids, Bases and Salts
3 - Metals and Non-metals
4 - Carbon and its Compounds
5 - Periodic Classification of Elements
6 - Life Processes
7 - Control and Coordination
8 - How do Organisms Reproduce
9 - Heredity and Evolution
10 - Light - Reflection and Refraction
11 - Human Eye and Colourful World
12 - Electricity
13 - Magnetic Effects of Electric Current
14 - Sources of Energy
15 - Our Environment
16 - Management of Natural Resources
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Chapter 8 - How do Organisms Reproduce
State the importance of DNA copying.
Why is variation beneficial to the species but not necessarily for the individual?
Write two differences between binary fission and multiple fission in a tabular form.
How will an organism be benefited if it reproduces through spores?
Can you think of reasons why more complex organisms cannot give rise to new individuals through regeneration?
List two advantages of vegetative propagation.
Why is DNA copying an essential part of the process of reproduction?
How is the process of pollination different from fertilization?
Write the functions of the following organs of reproduction:
b. Seminal vesicle and prostate glands
What are the changes seen in girls at the time of puberty?
Asexual reproduction takes place through budding in
Which of the following is not a part of the female reproductive system in human beings?
(c) Vas deferens
(d) Fallopian tube
The anther contains
(d) pollen grains.
What are the advantages of sexual reproduction over asexual reproduction?
List two functions performed by the testis in human beings.
Why does menstruation occur?
What are the different methods of contraception?
How are the modes for reproduction different in unicellular and multicellular organisms?
How does reproduction help in providing stability to populations of species?
What could be the reasons for adopting contraceptive methods?
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