male frog reproductive system

Here an individual of the colony stimulates other members of same species by producing specific sounds. For e.g., i) Song of birds, which indicate its territory, also serves as alarm calls and mating call. ii) Vervet monkeys produce different kinds of alarm calls for different predators. iii) ..

Question: What are the different parts of the female reproductive system? Answer: The female reproductive system consists of a pair of ovaries, a pair of oviducts, uterus, vagina and vulv..

This type of cell division occurs in reproductive cells (gametes). The male gamete is known as the sperm in animals and the female gamete is known as the ovum (egg). These gametes, after they are formed, have no future unless they unite to form a zygote, which then grows i..

It indicates the fertility of women. TFR indicates how many among reproductively potential women can actually produce children. The parameter like TFR as percentage of fertile women in a total population or as percentage of reproductively active population (male and fe..

Flowers are the reproductive structures in angiosperms. Each flower is a modified shoot adapted for purposes of reproduction. Flowers may occur either singly or in clusters. When clustered, the flowers are generally arranged on branches, which are quite distinct from the v..

Question: What is external fertilization? Answer: External fertilization takes place in animals like the fish and frog where the eggs are released from the body of the females into the water outside. These eggs are then fertilized by the sperms produced by the male sp..

Fertilisation - Fertilisation can be defined as the fusion of the sperm nucleus with the egg nucleus to form a diploid cell known as zygote. The fertilisation is internal in the human reproductive system. It is achieved by the insertion of the male organ, penis into th..

Purpose of reproduction leads to the formation of groups of individuals, called a family, which is an instinct of individuals of different sexes of a species. However, grouping behaviour varies from one species to another. i) Some animals are solitary and lead more an independent life. A..

A sperm is a haploid male gamete which fuses with the ovum to form the diploid zygot..

Parthenogenesis is a form of reproduction in which the ovum develops into a new individual without fertilisation. Natural parthenogenesis has been observed in many lower animals (it is characteristic of the rotifers), especially insects, e.g., the aphid. In many social insects, such..