Question

what are the disadvantage of external fertilization​

Answer 1

Answer:

Explanation:

What Are Disadvantages...

Search...

Home Pets & Animals Animal Reproduction

What Are Disadvantages of External Fertilization?

Disadvantages of external fertilization include a reliance on water and the large amount of wasted sperm and eggs that never reach a corresponding gamete, even when the organisms releasing the eggs and sperm are in close proximity. Additionally, the eggs released can have no shells, as these would stop sperm.

External fertilization is used only by animals that breed in water, since the sperm require water to swim through to reach the eggs. Animals that use this reproductive strategy include most fish, most amphibians, and many other types of aquatic invertebrates. Because of the uncertain fertilization of any particular egg, animals that use external fertilization typically produce very large numbers of sperm and eggs.

Answer 2

Answer:

The troubles of external fertilization are –

• A massive range of gametes remains unfertilized, and are eventually wasted.

• There isn't any assurance that the sperms and eggs will come into contact.

• Moreover, the threat of desiccation of zygotes or gametes are superior.

• Various environmental dangers and predators lessen the existence expectancy of new-born organisms.

Explanation:

External fertilization is a technique of reproduction wherein a male organism’s sperms fertilize a woman organism’s eggs, however outside the woman body. This system is exactly contrary to inner fertilization. In internal fertilization, sperms integrate with eggs through insemination withinside the woman body.

Moreover, external fertilization takes place in aquatic environments. Here, both sperms and eggs are launched into the water, and as soon as sperms attain the eggs fertilization takes place.

Additionally, most of the outside fertilization happens in the course of the spawning system. Here, one or greater woman organism releases eggs and further male organisms releases their sperms withinside the equal region. This system takes place on the equal time.