The most common method of asexual reproduction is by

Which of the following statements is true?

$(a)$ In both plants and animals,there are three phases during their life cycle.
$(b)$ In plants and animals,hormones are responsible for the transitions between these three phases.

$A$ bacterial cell divides every $1$ minute. It takes $15$ minutes for a cup to be one-fourth full. How much time will it take to fill the cup?

Examine the figures $A, B, C,$ and $D$ given below and select the right option for female sex organs.

In fungi,the term $homothallic$ is used to represent: