Why do female frog lay hundreds of eggs?

Why do female frog lay hundreds of eggs?

Answer : The female frogs (or female fish) lay hundreds of eggs because there are fewer chances of surviving in that environment, so from 100 even if 5-10 survive, their species will survive.

Why some animals produce more eggs?

The reason that some animals lay eggs is because that is more beneficial to them than than it is to give birth to a live offspring. Birds, for example, all lay eggs because they can’t fly with the weight of their babies inside of them.

Why frog lay so many eggs?

Frogs laid so many eggs in water to make sure that enough eggs reach to the morality & adulthood . because they are lowers in food chain & also have so may enemies in water & on land also . So to ensure for new generation they laid high number of eggs .

Why do animals that do external fertilisation produce more?

External fertilization is characterized by the release of both sperm and eggs into an external environment; sperm will fertilize the egg outside of the organism, as seen in spawning.

Why do animals lay a lot of eggs?

This is because the eggs and sperms get exposed to water movement, wind and rainfall. Also, there are other animals in the pond which may feed on eggs. Thus, production of large number of eggs and sperms is necessary to ensure fertilization of at least a few of them.

Why are eggs not fertilised in frogs and fish?

Though the animals like frog and fish which undergo external fertilisation, lay hundreds of eggs , all the eggs do not get fertilised and hence do not develop into new frogs.This is because: 1)Many of these eggs and sperm are carried away by the movement of water, wind or rainfall and hence all the eggs do not get fertilised.

How are the eggs of a female animal fertilised?

The female animal’s eggs are fertilised by sperm inside her body.The male animal puts his sperm into the female animal’s body.And these sperms then fertilise the eggs inside body. Type of fertilisation in which the fusion of a male gamete and a female gamete occurs inside the body of the female animal is called internal fertilisation.

Why are animals that do external fertilisation produce more?

Because the fertilisation is external there is less possibility of fusion of gametes in the outside environment and if somehow fertilisation carried out successfully there will be chances that the externally fertilised eggs and young ones are at greater risk from predators.

Though the animals like frog and fish which undergo external fertilisation, lay hundreds of eggs , all the eggs do not get fertilised and hence do not develop into new frogs.This is because: 1)Many of these eggs and sperm are carried away by the movement of water, wind or rainfall and hence all the eggs do not get fertilised.

The female animal’s eggs are fertilised by sperm inside her body.The male animal puts his sperm into the female animal’s body.And these sperms then fertilise the eggs inside body. Type of fertilisation in which the fusion of a male gamete and a female gamete occurs inside the body of the female animal is called internal fertilisation.

Which is an example of external and internal fertilization?

This occurs in most bony fish, many reptiles, some cartilaginous fish, most amphibians, two mammals, and all birds. Reptiles and insects produce leathery eggs, while birds and turtles produce eggs with high concentrations of calcium carbonate in the shell, making them hard. Chicken eggs are an example of this second type.