Arrange the following with respect to increasing life span: Rose,Fruit fly,Rice.

Reproduction without the fusion of gametes $- P$
Reproduction involving the fusion of gametes $- Q$
Choose the correct option for $P$ and $Q$.
$\quad\quad \quad P \quad\quad\quad \quad Q$

$Statement\; 1$: $A$ plant can be retained and multiplied indefinitely without any change or variation through asexual reproduction.
$Statement\; 2$: Asexual reproduction does not involve meiosis and syngamy.

........ and ........ are examples showing external fertilization.

Which of the following statements is true?

Which of the following factor$(s)$ is/are responsible for how an organism reproduces?