a. Cold blooded animal: Frog (Amphibians)

Cold blooded animals can’t keep their body temperature constant in accordance with the surroundings.

b. Warm blooded animal: Humans (Mammals)

Warm blooded animals can keep their body temperature constant in accordance with the surroundings.

c. Animal possessing dry and cornified skin: Lizard (Reptiles)

Such skin helps reptile to hold the moisture inside and helps them survive in dry areas

d. Dioecious animal: Ascaris (Aschelminthes)

Ascaris are worms which are dioecious. Dioecious means the male and female reproductive organs are held by different individuals just like in humans.