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Question
Sketch and label the diagram showing self- and cross-pollination.
Solution
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RELATED QUESTIONS
What are chromosomes?
What are the advantages of sexual reproduction over asexual reproduction?
Define Senescent phase.
Higher organisms have resorted to sexual reproduction in spite of its complexity. Why?
Describe the process of fertilisation in human beings.
Differentiate between internal fertilization and external fertilization.
Complete the crossword puzzle using the hints given below.
Across
1. The process of the fusion of the gametes.
6. The type of fertilisation in hen.
7. The term used for bulges observed on the sides of the body of Hydra.
8. Eggs are produced here
Down
2. Sperms are produced in these male reproductive organs.
3. Another term for the fertilised egg.
4. These animals lay eggs.
5. A type of fission in amoeba.
Write the importance of sexual reproduction in nature.
Advantages of sexual reproduction.
What is the name of sex cells (other than gametes)?
Name the male and female gametes in animals.
What is formed when two gametes fuse?
What is this act of fusion called?
Write the various steps involved in the sexual reproduction in plants.
Characters that are transmitted from parents to offspring during sexual reproduction show :
(a) only similarities with parents
(b) only variations with parents
(c) both similarities and variations with parents
(d) neither similarities nor variations with parents
The correct sequence of organs in the male reproductive system for the transport of sperms is:
(a) testis → vas deferens → urethra
(b) testis → ureter → urethra
(c) testis → urethra → ureter
(d) testis → vas deferens → ureter
One of the following process does not lead to the formation of clones. This is :
(a) fission
(b) fertilisation
(c) fragmentation
(d) tissue culture
Distinguish between the following pair of terms:
Sexual reproduction and asexual reproduction.
Multiple choice question. Tick (✓) the correct choice:
Butterfly in its development from larva to an adult shows
- multiplication
- metamorphosis
- fertilisation
- none of the above
Define the term Adolescence.
Define the term Metamorphosis.
Mention the common method of reproduction in Flatworm.
Mention the functions of Oviduct.
Adolesecence is considered a critical stage in the life of boys and girls. Explain this statement.
What is sexual reproduction? List its four significances.
Answer the following question.
Explain the process of fertilization in humans.
Answer in one sentence.
Outline the path of sperm upto the urethra.
Answer in one sentence.
Name the endocrine glands involved in maintaining the sex characteristics of males.
Long answer question.
Describe female reproductive system of human.
Identify the labels from the given diagram.
Which organs/glands produce eggs and sperms?
Which of the following is the male accessory gland?
______ fertilisation takes place in frogs and fish.
Name the two ways by which fertilisation in animals takes place.
What is external fertilisation?
With which type of reproduction do we associate the reduction division? Analyse the reasons for it.
'Fertilisation is not an obligatory event for fruit production in certains plants'. Explain the statement.
Which is a better mode of reproduction, sexual or asexual? Why?
