Why do frogs produce hundreds of eggs

Many of the sperms get washed away due to water movement. Many eggs are eaten by predators. Even after eggs are fertilized to form larva, they are eaten by other water animals. So, laying eggs in hundreds will give a chance for a few of them to survive and grow into adults. While hen lays only one egg because the egg development in the hen takes inside uterus thus loss of gamete does not take place therefore in hen the zygote formation is not controlled by nature.

Hence, the survival of the chick which would hatch from the egg has much higher rates as compared to frogs and fishes. Some of the learners also asked: How many days does it take for a hen to hatch its eggs? Select Male Female. Most frogs, both male, and female abandon their eggs shortly after mating. This is precisely why they lay so many eggs — they have a low survival rate. Why a female frog produces hundreds of egg cells at a time but a female human produces only one egg cell at a time?

Frogs undergo external fertilization and in human internal fertilization takes place. For this reason female frogs lay hundreds of eggs at a time. More number of eggs means more chances to get fertilized. Why do frogs lay hundreds of eggs at a time? Compared to hens, fish and frogs lay hundreds of eggs because: — In Fish and Frogs, external fertilization occurs. Therefore, a large number of gametes in these species are produced to increase the chances of fertilization.

Frogs and toads lay eggs in jelly-like masses, and unless the eggs are covered with water, they will dry up and die. Regardless of where they spend most of their time, all frogs return to the water to lay their eggs. The type of fertilization in fish and frog is external fertilization i. Thus the fish and frog produce a huge number of eggs each year to overcome the chance factor sperm to come in contact with egg and produce offsprings. The amplexus embrace between frogs stimulates the female to release her eggs which she expels in the form of a gelatinous mass.

The contractions from the female thereby stimulate the male to pray the eggs with sperm, fertilizing them. For frogs and toads, the males will clamber on top of the female in shallow areas of water.