class XII isc biology questions
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Question 1.
What is the life span?
Answer:
The period from birth to natural death of an organism is termed its life span.
Question 2.
Why is reproduction essential for organisms?
Answer:
Reproduction is a process by which an organism produces young ones of its own kind to maintain the continuity of the species. It enables the species to live generation after generation.
Question 3.
What type of modification are ginger, potato, onion and Samarkand?
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