Questions

Entity is a real world object

Heritable variation is one of the four most important factors that affect whether natural selection can occur. These factors include

1) Heritable variation

2) Descent with modification

3) Struggle for survival, and necessarily if the others are satisfied

4) Survival of the fittest.

Heritable variation allows for possibly beneficial, negative, or even neutral mutations to get filtered during each generation by natural selection--weeding out negative mutations, passing on positive and neutral ones. Without heritable variation, species would quickly fall victim to parasites who take advantage of identical genetic material in a population and evolution would not occur.

Variation is the raw material of evolution.

Let the required number be 'X'

Condition 1 :  

$$\begin{gathered} XX = 2X \\ => 2X2 = X \\ => X = 12 \end{gathered}$$

Condition 2 :

$$\begin{gathered} X × X = X2 \\ => X = 12 \end{gathered}$$

Therefore, 12 is the number which becomes double when it is divided by itself and becomes half when it is multiplied by itself.

A Group of birds or a flock flying together in hundreds or even in thousands is called Murmuration.

A Temper.

Various designations have been specified by the President for the different Union Territories:

(i) Chief Commissioner for Chandigarh

(ii) Administrator for

     (a) Lakshadweep and

     (b) Dadra and Nagar Haveil

(iii) Lieutenant Governor for 

    (a) Andaman and Nicobar Islands

    (b) Delhi

    (c) Daman and Diu and

    (d) Pandicherry

The Indian Space Research Organization (ISRO) has signed a memorandum of understanding with Bharat Heavy Electricals Limited (BHEL) to help develop low-cost lithium-ion batteries for electric vehicles.