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Which one of the following is the basic unit of classification of the living organisms?

The hierarchy of classification is as follows (broadest to smallest)

Kingdom → phylum → class → order → family → genus → species

A kingdom consisting of single celled, prokaryotic organisms is

Most primitive organisms among the following are

Which one of the following should be grouped with whales, according to modern classification?

Fill in the blanks with suitable words

1. Protozoa belong to the kingdom ___________.

2. Animals without a backbone are called ________.

3. Most of the organisms depend directly or indirectly upon __________ for food.

4. Group of organisms that breed among themselves and produce fertile offsprings make a _________.

Questions · 17

6. Classification of living organisms

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