What ensures the continuity of plant and animal species on earth for several thousands of years?

What ensures the continuity of plant and animal species on earth for several thousands of years?
  1. Natural death
  2. Old age
  3. Reproduction
  4. Aging

Solution

The author mentions that there must be some processes in living organisms, such as reproduction, that ensure the continuity of plant and animal species on earth for several thousands of years.

Asked in: NCERT

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