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The first organisms appeared on earth we...

The first organisms appeared on earth were

A

Chemoheterotrophs

B

Chemoautotrophs

C

Photoautotrophs

D

Decomposers

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The correct Answer is:
A
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AAKASH INSTITUTE-EVOLUTION-SECTION-B OBJECTIVE TYPE QUESTIONS
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  2. The first organisms appeared on earth were

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  3. Most important condition for origin of life is the presence is

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  4. Early atmosphere contained methane and other hydrocarbons. They have b...

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  5. According to the discovery made in 1980's. RNA can act like enzyme to ...

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  6. Which among the following are called the Darwin's finches?

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  7. Which of the following scientists believed in the concept of natural s...

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  8. The fish-like giant reptile which existed 200 mya was

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  9. Which of the following was a land dinosour?

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  10. The wrongly mathced pair w.r.t. the organisms and their probable time ...

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  11. Seed ferns originated in

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  12. The dinosaurs descended from ancestors.

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  13. Which of the following had huge fearsome dagger like teeth?

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  14. the origin of seeds in the land plants was achieved about 345 million ...

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  15. Origin of mammal-like reptiles occurred in

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  16. As horse evolved, there was progressive reduction in number of toes. W...

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  17. The homologous structures are

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  18. Tasmanian wolf and placental wolf appear similar due to

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  19. The Darwinian variations are

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  20. Natural selection leads to the directional change when

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