Question # 1

Important cause of species extinctions is:

Choose an answer

Habitat loss

Deforestaion

Over population

Both a and b

Animals are ____________

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Heterotrophy

Autotrophy

Chorophyll

None

Taxon of Order was introduced by:

Choose an answer

Carolous linnaeus

John Ray

Augustus Rivinus

Aristole

Loss of species makes ecosystem less ____________ and less productive.

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Beneficial

Resilient

Interactive

None of these

Destruction of trees in unwise and unplanned manner is called _____________

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Deforestation

Reforestation

Destruction

Extension

Members of the same species living in the same place is called:

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Habitat

Biosphere

Community

Population

Families are grouped into _____________

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Family

Order

Class

Phylum

Viroids are composed of:

Choose an answer

RNA only

DNA only

Protein only

Both RNA and protein

The reasons for conserving biodiversity are ____________

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Provide medical plants

Provide edible sources

Prevent soil ersion

All of above

The lowest taxon among the following is:

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Genera

Class

Order

Families

Which one is not related to protista?

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Algae

Protozoans

Bacteria

Fungi like organisms

Viruses can be _____________

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Seen

Crystallized

Store

None

There are about ____________ different kind of vertebrates on earth.

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12,000,00

47,000

12,000

47,500

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