What is the difference in the types of fertilization among animals?

What is the difference in the types of fertilization among animals?

In animals, there are two types of fertilization, internal and external. Internal fertilization happens in the female body. External fertilization happens outside of the body. Mammals, birds, and reptiles use internal fertilization.

Which is better internal or external fertilization?

Internal fertilization protects the fertilized egg or embryo from predation and harsh environments, which results in higher survival rates than can occur with external fertilization.

What is external Fertilisation 8th?

The fertilisation which take place outside the female body is called external fertilisation. The female animal’s eggs are fertilised by sperms outside her body. male and female animal release their sperms and eggs in water where fertilisation take place by collision between sperm and eggs.

What is the difference between external and internal events also examples?

Examples Internal transactions include internal stock transfers from one department to another, charge of depreciation, amortization of prepaid expenses etc. External transactions include third party purchase or sale of goods, incurring of expenses etc.

What is the difference between external and internal respiration?

The main difference between internal respiration and external respiration is that internal respiration refers to the gas exchange across the respiratory membrane in the metabolizing tissues whereas external respiration refers to the gas exchange across the respiratory membrane of lungs.

What is the similarities and differences of internal and external fertilization?

The similarity between internal fertilization and external fertilization is that the sperm fuses with the egg cell to form a zygote. The dissimilarity is that in internal fertilization, the fusion occurs inside the body of the organism while in external fertilization, the fusion occurs outside the body of the organism.

What’s the difference between internal and external fertilization?

Some of the major differences between external fertilization and internal fertilization of sexual reproduction are as follows: 1. It occurs outside the body of the female. 2. A large number of gametes are released in the surrounding medium (e.g., water) where fertilization takes place. 3. Examples: Bony fish, Amphibians, most of Algae, etc.

Are there any disadvantages to external fertilization?

However, there are some disadvantages associated with external fertilization such as the requirement of releasing a large number of gametes, having a low survival rate of the embryo, lack of parental care, etc. What is Internal Fertilization? Internal fertilization is the second type of fertilization that occurs within the female body.

Which is an example of external fertilization in animals?

Hence, the organisms which show external fertilization should live in water or they should go to watery environments for reproduction. Special feature of the male gametes is that they are motile. Also, this type of fertilization mainly occurs in lower plants. Furthermore, some animals such as amphibians and fish show external fertilization.

How are gametes released during external and internal fertilization?

During the external fertilization, male and female organisms release their gametes into the environment. On the other hand, during the internal fertilization, male organism deposits male gametes inside the female organism.