Viviparous and oviparous animals:
- Animals that give birth to young ones are known as viviparous animals.
- In these animals, the development of the embryo takes place inside the body of the mother, human, tiger,
goats and cats are some examples of viviparous animals.
- Animals that lay eggs are known as oviparous animals. In these animals, the development of embryo
takes place in the egg after it is laid. Birds, lizards, crocodiles are some examples of oviparous animals.
A frog passes through three stages during its development from an egg to an adult frog:
Butterflies and moths pass through four stages before winged adult is born:
- The transformation of larva into an adult through drastic changes is called metamorphosis.
Asexual reproduction involves the production of new organisms by just one parent. Some of the asexual reproductions are:
The process by which an organism reproduces by dividing into two cells from a single cell is called binary fission. Binary fission is seen in single-celled organisms, such as Amoeba and Paramecium.
In budding, a new organism grows in the form of a bulb-like projection called a bud from the parent organism. It grows and may eventually break away from the parent. Yeast and Hydra reproduce by budding.
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