Question

Difference between oviparous and viviparous animals in tabular form

Answer 1

Main Difference – Oviparous vs Viviparous Animals

Animals show different methods of production of young ones. Oviparous and viviparous are such two methods. The main difference between oviparous and viviparous animals is that oviparous animals do not undergo any embryonic development inside the mother whereas viviparous animals develop into a young animal inside the mother. This means oviparous animals lay eggs. These eggs develop and hatch into young individuals. In contrast, viviparous animals are born as live young individuals. Therefore, they do not lay eggs. Birds, reptiles, amphibians, most fish, insects, mollusks, arachnids, and monotremes are oviparous animals. Most mammals are viviparous animals.What are Oviparous Animals

Oviparous animals refer to the animals that produce eggs; the maturation and hatching of young ones occur outside the female body. The fertilization of the egg may occur either internally or externally. Birds, reptiles, amphibians, most fish, insects, mollusks, arachnids, and monotremes are oviparous animals. Many birds, amphibians, reptiles and fish produce nests in order to protect their eggs. However, some sharks and snakes are oviparous animals whose eggs hatch inside the female body and live, young ones are expelled. A mute swan’s nest with eggsWhat are Viviparous Animals

Viviparous animals refer to the animals that give birth to developed live young individuals. These animals possess special organs which supply nutrients for the development of the embryo. This condition is referred to as matrotrophy. This means the embryo of the viviparous animals receives nutrients from the mother, rather than from the yolk. Some fish, amphibians, reptiles, and mammals show viviparity. But, birds do not show viviparity. Mammals also consist of mammary glands, which produce milk to feed the young ones. Humans are one of the examples of viviparous mammals. A human embryo inside the mother

Answer 2

Answer:

Animals show different methods of production of young ones. Oviparous and viviparous are such two methods. The main difference between oviparous and viviparous animals is:

1. The oviparous animals do not undergo any embryonic development inside the mother whereas viviparous animals develop into a young animal inside the mother.

2. This means oviparous animals lay eggs. These eggs develop and hatch into young individuals. In contrast, viviparous animals are born as live young individuals. Therefore, they do not lay eggs.

3. Birds, reptiles, amphibians, most fish, insects, mollusks, arachnids, and monotremes are oviparous animals. Most mammals are viviparous animals.