2. Read the following statements and
justify same in your own words with
the help of suitable examples.
a. Human evolution began
approximately 7 crore years ago,
b. Geographical and reproductive
isolation of organisms gradually
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Answer:
a. Human evolution began
approximately 7 crore years ago.
b. Geographical and reproductive
isolation of organisms gradually leads to speciation.
c. Study of fossils is an important
aspect of study of evolution.
d. There is evidences of fatal
science among chordates.
Explanation:
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