Question Text
Question 1 :
The theory of evolution of species by natural selection was given by
Question 2 :
Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?
Question 3 :
Does the occurence of diversity of animals on earth suggest their diverse ancestry also?
Question 6 :
The process of evolution of a species whereby characteristics which help individual organisms to survive and reproduce are passed on to their offspring and those characteristics which do not help are not passed on is called
Question 7 :
A woman has only daughters. The reason behind this can be
(i) The woman produces ova with 'X' chromosome.
(ii) The man produces sperms with X and Y chromosomes which actually determines the sex of the baby.
Question 9 :
'If sexual reproduction is involved, greater diversity will be generated'. State whether this statement is True or False.
