Choose the incorrect option for the organism given below.

Parameters of old age are

Life span of Cow is $20-25\, years.$ What is the life span of horse?

Study the following statements and choose the correct option:
$I$. Asexual reproduction is common among single-celled organisms and organisms with relatively simple organization.
$II$. Conidia,bud,and gemmules are common sexual structures.
$III$. Runner,rhizome,sucker,tuber,offset,and bulb are vegetative propagules.
$IV$. The invasive weed found growing in freshwater bodies is $Zostera$.

Diploid zygote is universal in

In fungi and plants,the bisexual condition is represented by $P$ and the unisexual condition is represented by $Q$. Choose the correct option for $P$ and $Q$.
$P \quad\quad Q$