class-8-biology-reproduction-in-animals

Reproduction in Animals Materials

Frequently Asked Questions - Reproduction in Animals

Reproduction in animals is the biological process by which new organisms are produced from existing ones, ensuring the continuity of species.

The two main modes are asexual reproduction (single parent) and sexual reproduction (two parents).

Asexual reproduction involves the formation of offspring from a single parent without the involvement of gametes. Examples include binary fission and budding.

Sexual reproduction involves the fusion of male and female gametes (sperm and egg) to form a zygote, which develops into a new individual.

Fertilization is the fusion of the male and female gametes to form a zygote, which marks the beginning of the development of a new individual.

Animals reproduce through various methods such as laying eggs (oviparous), giving birth to live young (viviparous), and producing young ones by hatching eggs inside the body (ovoviviparous).

Metamorphosis is a process of development in insects where the young one undergoes distinct stages, like larva, pupa, and adult, with significant structural changes.

Animals care for their young through parental care, which includes providing food, protection, and shelter to ensure their survival.

Sexual reproduction leads to genetic variation, adaptability, and evolution in species, enhancing their survival chances in changing environments.

In internal fertilization, the male gamete (sperm) is transferred directly to the female's reproductive tract, increasing the chances of successful fertilization.