Question

3.
Life on Earth
Exercises
Q.1. Fill in the blanks
(a) The
is the only planet where life is known to exist.
(b) A
organism seen through a microscope.
(c) The living world on the earth consists of
and
First living organism appeared in
Q.2 Answer each question in one sentence.
*(a) What instrument do we need to see a unicellular organism ?
Ans.
*(b) Where did the protozoa appear first?​

Answer 1

Answer:

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Answer 2

Answer:

1. A. The earth is the only planet where life is known to exist.

B. A Micro - organism seen through a microscope.

C.The living world on the earth consists of plants and animals

First living organism appeared in water

2. A. Microscope

B. Water

Explanation:

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