Question

The animal that reproduces by laying eggs is?
A.Cat
B.Dog
C.Cow
D.Fish

Answer 1

Reproduction is defined as the biological process of producing offspring that are biologically or genetically similar to the parents. Birds and most reptiles lay eggs that mature and hatch after being expelled from the body of the mother.

Complete answer: Oviparous: Oviparous animals refer to the animals that produce eggs that mature and hatch after being expelled from the body. They lay either fertilized or unfertilized eggs. The development of the zygote occurs outside the female and the embryo receives nutrients from the yolk. Example: Most fishes, birds, reptiles.
Viviparous: Viviparous animals refer to the animals that give birth to developed live young individuals. The development of the zygote occurs inside the female and the embryo receives nutrients from the mother. Example: Most mammals.
Option -A- Cat: Since Cat is a mammal and viviparous animal so it doesn't lay eggs instead it gives rise to developed young ones.
Option -B- Dog: The dog is also a viviparous animal and does not lay eggs
Option -C- Cow: Cow too is a viviparous animal and gives rise to develop young ones.
Option -D- Fish: Most fishes are oviparous and lay eggs I.e fish do not give rise to little fish but instead lay eggs and egg mature and hatch after being expelled out from the body.
So, the correct answer is option D "Fish"

Note: Almost all mammals give rise to living babies or young ones except the two, Platypus and echidna. Ovoviviparous: Embryos develop within the mother's body but for nutrition purposes, they depend entirely on the yolk sac of their eggs. The young ones don't receive any additional nutrients from the mother. The young one's either hatch within the mother's body or are released immediately before hatching. They swim freely shortly after hatching. Example: Sharks, some snakes.