Biology
Explain Darwin theory of 'Natural selection'.
Human Evolution
3 Likes
Answer
During the struggle for existence, only those individuals which have advantageous variations survive while the ones which lack these variations are wiped out. Nature selects only those variations which are suitable for existence. This process is called natural selection.
Answered By
1 Like
Related Questions
Define alleles.
After examining a prepared slide under high power microscope, a student concludes that the given slide shows stage of mitosis. Write his observation on the basis of which this conclusion can be drawn.
'A' forms the outer portion of the kidney and 'B' form the inner portion of the kidney. Name A and B.
Study the diagram given below and answer the questions that follows.
(a) Name the parts labelled 1, 2 and 3 in the diagram.
(b) Mention the collective terms for the membranes covering the brain.
(c) What is the function of cerebrospinal fluid?