How do Organism...

Organisms in population A, have no genetic variations, and organisms of population B, have genetic variations. Based on this information, choose the correct statement.

A plant produced $$50$$ flowers. Ovary of each flower has $$50$$ ovules. How many fruits and seeds are produced by that plant respectively?

A narrow waistline, wide hip and oily skin are the secondary signs of puberty in:

Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.
(i) Ovary ripens to form seed and ovule ripens to form fruit after fertilization.
(ii) Seed dispersed through water usually develop floating ability in the form of spongy or fibrous outer coat as in coconut.
(iii) Pollination occurs before fertilization.
(iv) Cutting, layering, grafting and tissue culture are the natural methods of vegetative propagation .
         (i)      (ii)    (iii)    (iv)

The first sign of puberty in females is: 

Regeneration occurs in which of the following organisms?

Which one of the following methods requires two genetically variable individuals to produce the progeny?

Which of the following methods of preventing pregnancy, act by changing hormonal balance of the body so that eggs are not released and fertilization cannot occur?

Name the process in which thousands of plants can be raised within a limited time and space.

Match the pairs of types of asexual reproduction.