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 $Q$.
$P \quad\quad Q$

Select the incorrect statement:

Which of the following statements is not correct about sexual reproduction?
$(I)$ Gametes fuse to form the zygote.
$(II)$ It is an elaborate,complex,and fast process compared to asexual reproduction.
$(III)$ Offspring are not identical to the parents.

Parameters of old age are

Define and explain the following terms:
$(a)$ Sexual reproduction vs. Asexual reproduction
$(b)$ Fission vs. Clones

Which of the following statements support the view that elaborate sexual reproductive processes appeared much later in organic evolution?
$I.$ Lower groups of organisms have complex body design
$II.$ Asexual reproduction is common in lower groups
$III.$ Asexual reproduction is common in higher groups of organisms
$IV.$ High incidences of sexual reproduction are visible in angiosperms and vertebrates