Sometimes,in yeast,the conjugation takes place between a parent cell and a bud. It is called

Arrange the following animals in ascending order of their maximum lifespan and select the correct option:
Animal Name | Code
Butterfly | $(a)$
Crocodile | $(b)$
Swan | $(c)$
Toad | $(d)$
Parrot | $(e)$

Distinguish between: Pre-fertilization events and Post-fertilization events.

Oestrus cycle is cyclic changes in the activities of ovaries and accessory duct during

Reproduction means....

Match the following and choose the correct combination from the options given:

Column-$I$	Column-$II$
$(A)$ Butterfly	$(1)$ $60 \text{ years}$
$(B)$ Crow	$(2)$ $140 \text{ years}$
$(C)$ Parrot	$(3)$ $15 \text{ years}$
$(D)$ Crocodile	$(4)$ $1-2 \text{ weeks}$