Evolution is not a direct process, but a stochastic process, base… - Vidyadip

Question

Evolution is not a direct process, but a stochastic process, based on chance event(s) in nature. Justify.

✓

Answer

Evolution is not a direct process in terms of determinism.
As the environment changes, due to meteorological, biological and other physical activities, the organisms which are better adapted to the changed environment are selected by nature in a much lesser time scale.
It is also true for natural selection and evolution of antibiotic-resistant strains of bacteria in a time scale of months.
So, evolution is a stochastic process based on chance events in nature and chance mutation in the organism.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Short Answer Type Questions [2M]" from Evolution→Evolution — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

(i) Write the name of the form of malaria parasite in which it enters (a) the human body and (b) the body of female anopheles respectively.
(ii) Name the hosts within which sexual and asexual reproduction of malaria parasite takes place respectively.
(iii) Write the name of the toxin responsible for causing symptoms of malaria in humans. Why are these disease symptoms recurring?

Mention the similarity between autogamy and geitonogamy

Describe the lactational amenorrhea method of birth control.

Certain cotton plants are called Bt cotton. Explain.

During an excavation assignment, scientists collected pollen grains of a plant preserved in deeper layers of soil. Analyse the properties of pollen grains which help in the fossilization.

Why do high altitude areas have brighter sunlight and lower temperatures as compared to the plains?

Mention the three enzymes of industrial importance.

What is menstrual cycle? Which hormones regulate menstrual cycle?

During the secondary treatment of the primary effluent how does the significant decrease in BOD occur?

OR

During the secondary treatment of the primary effluent how does the significant decrease in BOD occur?

What is biogas? Why is it preferred to other conventional energy fuels?