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List the secondary sexual characters obs...

List the secondary sexual characters observed in boys.

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i] Growth of body hair, including face, underarm, abdominal, chest hair and pubic hair.
ii] Muscular growth and Broadening of shoulders and chest.
iii] Enlargement of larynx (Adam.s apple) and deepening of voice
iv] Increased muscle mass and strength.
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ZEN PUBLICATION-HOW DO ORGANISMS REPRODUCE?-ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER [SA] TYPE 1 QUESTIONS)
  1. Explain the structure of a typical flower.

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  2. List the secondary sexual characters observed in girls.

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  3. List the secondary sexual characters observed in boys.

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  4. Explain the menstrual cycle.

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  5. Write two examples each of sexually transmitted diseases caused by (i)...

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  6. In tobacco plant, the male gametes have twenty four chromosomes. What ...

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  8. In a bisexual flower inspite of the young stamens being removed artifi...

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  9. Draw a labelled diagram in proper sequence to show budding in hydra.

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  10. A student is viewing under a microscope a permanent slide showing vari...

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  11. Is cell division a type of reproduction in unicellular organisms? Just...

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  12. Why cannot fertilisation take place in flowers if pollination does not...

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  13. With the help of a neat diagram, illustrate a] spore formation in rh...

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  14. What changes occur in the uterus if fertilization does not occur? OR...

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  15. What are the advantages of using mechanical barriers during the sexual...

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  16. How is asexual reproduction different from sexual reproduction?

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  17. Usually the seed part of the fruit will not be tasty (may taste bitte...

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  18. Explain budding with an example.

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  19. Why is asexual reproduction important in lower organisms?

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