HARD
10th CBSE
IMPORTANT
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Write two points of different asexual types of reproduction. Describe why variations are observed in the offspring formed by sexual reproduction.

Important Questions on How do Organisms Reproduce

MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 8 - How do Organisms Reproduce>Long Answer Type Questions>Q 51
Distinguish between pollination and fertilisation. Mention the site and product, of fertilisation in a flower. Draw a neat, labelled diagram of a pistil showing pollen tube growth and its entry into the ovule.
MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 8 - How do Organisms Reproduce>Long Answer Type Questions>Q 52
Distinguish between a gamete and zygote. Explain their roles in sexual reproduction.
MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 8 - How do Organisms Reproduce>Long Answer Type Questions>Q 53
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 8 - How do Organisms Reproduce>Long Answer Type Questions>Q 54
What is the placenta? Mention its role during pregnancy.
HARD
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 8 - How do Organisms Reproduce>Long Answer Type Questions>Q 55

What are various ways to avoid pregnancy? Elaborate any one method.

MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 8 - How do Organisms Reproduce>Long Answer Type Questions>Q 56
How does fertilisation take place? Fertilisation occurs once in a month. Comment.
HARD
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 8 - How do Organisms Reproduce>Long Answer Type Questions>Q 57
Reproduction is essentially a phenomenon that is not for survival of an individual but for the stability of a species. Justify.
MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 8 - How do Organisms Reproduce>Long Answer Type Questions>Q 58
Describe sexually transmitted diseases and mention the ways to prevent them.