51.  The primitive cell-like colloidal particles capable of growth and division were ______.

A. prokaryotes

B. coacervates

C. eobionts

D. chemoautotrophs

Answer : Option C

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52.  The stage for the evolution of autotrophs was set with the evolution of ______.

A. RNA

B. DNA

C. ozone

D. chlorophyll

Answer : Option D

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53.  The first organism to be found on a bare rock is a (an) ______.

A. moss

B. algae

C. lichen

D. fern

Answer : Option C

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54.  The doctrine of evolution is concerned with ______.

A. gradual changes

B. abiogenesis

C. biogenesis

D. none of the above

Answer : Option C

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55.  The era called ‘age of prokaryotic microbes’ is ______.

A. archaezoic

B. precambrian

C. phaenerozoic

D. proterizoic

Answer : Option A

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56.  The determine which molecules might have formed spontaneously on early earth, Stanley Miller used an apparatus with an atmosphere containing ______.

A. oxygen, hydrogen and nitrogen

B. oxygen, hydrogen, ammonia and water vapour

C. oxygen, hydrogen and methane

D. hydrogen, ammonia, methane and water vapour

Answer : Option D

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57.  The utilization of elements and compounds in nature generation theory because ______.

A. life cycles

B. cyclic pathway

C. material cycles

D. recycling

Answer : Option C

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58.  What is ethnobotany ?

A. Relationship between primitive plants and people

B. Study to soil

C. Cultivation of flower yielding plants

D. Use of plants and their parts

Answer : Option A

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59.  The first photoautotroph organisms were ______.

A. bryophytes

B. algae

C. cyanobacteria

D. bacteria

Answer : Option D

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60.  Who performed this famous experiment to prove origin of life ?

A. Oparin and Haldane

B. Spallanzani and Pasteur

C. Urey and Miller

D. Fox and Pasteur

Answer : Option C

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