Identify the type of mammal shown in the figure based on its mode of reproduction.

Which of the following is a viviparous animal?

What is common among a bat,a whale,and a rat?

The mammal that is oviparous is .......... .

Testes in rabbit are

Note the following:
$I.$ Dentition is heterodont.
$II.$ Canines are poorly developed.
$III.$ Incisors are chisel-like,poorly developed.
$IV.$ Herbivorous and diastema is present.
$V.$ The dental formula is $I \frac{2}{1}, C \frac{0}{0}, P m \frac{3}{2}, M \frac{3}{3}$.
Which of the above are true for $Oryctolagus$?