Where are the testes located in human males?

Colonies of yeast fail to multiply in water,but multiply in sugar solution. Give one reason for this.

In the given figure,the parts $A, B$,and $C$ are sequentially:

Write true or false for the statement: The development of the child inside the mother's body takes approximately eleven months.

What is the effect of $DNA$ copying,which is not perfectly accurate,on the reproduction process? How does the amount of $DNA$ remain constant though each new generation is a combination of $DNA$ copies of two individuals?

Regeneration is not possible in all types of animals. Why?