Biology
Grade-7
Easy

Question

Match the following.

  1. 1-b, 2- a, 3-c
  2. 1-b, 2-c, 3-a
  3. 1-c, 2-b, 3-a
  4. 1-a, 2-b, 3-c

hintHint:

1-b, 2-c, 3-a

The correct answer is: 1-b, 2-c, 3-a


    A keystone species is an organism that helps define an entire ecosystem. These species play a crucial role in the formation and development of a community.
    Sea stars are important members of the marine environmental considered a keystone species as they prey on animals that have no other natural Predator.
    Decrease in temperature and greater seasonal variations are the cause of species diversity in poles. Poles are community with very little species diversity.

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