Class 10 Biology21)
The more characteristics two species have in common :
More closely they are related and more recently they had a common ancestors.
Class 10 Biology22)
What is the difference between genetic drift and change due to natural selection?
Genetic drift does not involve competition between members of a species.
Class 10 Biology23)
Which concept was not included in Charles Darwin’s theory of Natural Selection?
Class 10 Biology24)
Natural selection is called ‘survival of the fittest’. Which of the following statements best describes an organism?
The ability to adapt to the environment in the niche it occupies.
Class 10 Biology25)
Human offspring’s sex is determined
through father’s sex chromosomes.