Question

yek shetkri aani tyache tin mul aadshi kthalekhan
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Answer 1

Answer:

HOTS Bacteria have a simpler body plan

when compared with human beings. Does it

mean that human beings are more evolved

than bacteria? Provide a suitable

NCERT Exemplar

explanation.

When a new species is formed, it is not necessary that

the old species like bacteria will disappear from the

Earth. It will depend on the environment. Also, it is

not as, if the newly formed species are in any way

better than older ones. It is simply that the genetic

drift and natural selection processes have combined to

form a population having different body design which

cannot interbreed with the older population.

This is because, many of the older and simpler forms

of organisms still survive on the Earth, e.g. bacteria.

The

reason is that these can survive in most

in

unfavourable conditions like hot springs, deep-sea,

thermal vents and in ice in Antarctica. Therefore, we

cannot say that human beings are more evolved than

bacteria, just because they have complex body designs.

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