Question

Define variation in relation to their species why is variation beneficial to a species

Answer 1

Draw the diagram of female reproductive system and match and mark the part(s): 5

i) Where block is created surgically to prevent fertilization.

ii) Where CuT is inserted?

iii) Inside which condom can be placed.

b) Why do more and more people prefer to use condoms? What is the principle behind use of condoms

Answer 2

Explanation:

Variations are beneficial to the species than individual because sometimes for a species, the environmental conditions change so drastically that their survival becomes difficult. For example, if the temperature of water increases suddenly, then most of the bacteria living in that water would die. Only few variants that are resistant to heat would be able to survive. However, if these variants were not there, then the entire species of bacteria would have been destroyed. Thus, these variants help in the survival of the species. However, all variations are not necessarily beneficial for the individual organisms.