Animalscaretips
Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young. ... Fewer offspring are produced through this method, but their survival rate is higher than that for external fertilization.
- Why does external fertilization produce more eggs than internal fertilization?
- How is internal fertilization different from external fertilization?
- Which fertilization is better internal or external and why?
- Why is external fertilization disadvantaged than internal fertilization?
- Why do animals with external fertilization almost always live in water?
- What is the difference between external and internal fertilization quizlet?
- What is the difference between zygote and Foetus?
- What is a disadvantage of internal fertilization?
- Why are offspring of Oviparous animals at a greater risk as compared to offspring of viviparous animals?
- Why would paired external fertilization be preferable to group spawning?
- Why does external fertilization need water?
- Is Mosquito internal or external fertilization?
- Why animals exhibiting external fertilization produce a large number of gametes?
- What is meant by internal fertilization and external fertilization explain with examples?
Why does external fertilization produce more eggs than internal fertilization?
External fertilization in an aquatic environment protects the eggs from drying out. ... Therefore, millions of eggs must be produced by individuals. The offspring produced through this method must mature rapidly. The survival rate of eggs produced through broadcast spawning is low.
How is internal fertilization different from external fertilization?
Complete answer: Internal fertilization is the process when the syngamy (union of male and female gamete) occurs inside the female body after insemination using copulation. In contrast, External fertilization is the syngamy outside the female body, that is in the outer environment especially in water bodies.
Which fertilization is better internal or external and why?
Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. ... Internal fertilization also enhances the fertilization of eggs by a specific male. Even though fewer offspring are produced through this method, their survival rate is higher than that for external fertilization.
Why is external fertilization disadvantaged than internal fertilization?
Disadvantage if external fertilisation is that there is less chances of meeting of sperm and ova whereas in internal fertilisation there is more chances if fertilisation. More no of sperms are delivered in external fertilisation as compared to internal fertilisation to increase efficiency of fertilisation.
Why do animals with external fertilization almost always live in water?
External fertilisation of the female gamete by the male gamete takes place mostly in water; because water facilitates: extended period of gamete survival and easy movement of sperms towards egg.
What is the difference between external and internal fertilization quizlet?
External fertilization is when eggs are released by a female into the environment and later fertilized with a male's sperm. Internal fertilization is when sperm are deposited in or near a female's reproductive tract and fertilization takes place within the reproductive tract.
What is the difference between zygote and Foetus?
Zygote is a fertilized egg formed after the fusion of the sperm with the egg. It divides several times to form an embryo. On the other hand, Foetus is a stage of the embryo that shows all the main recognizable body parts of a mature organism.
What is a disadvantage of internal fertilization?
Disadvantages of internal fertilization are that there are lesser number of offspring produced at a given time because it is sometimes difficult for the male and female to come into intimate contact. Additionally, the risk of sexually transmitted diseases also increases.
Why are offspring of Oviparous animals at a greater risk as compared to offspring of viviparous animals?
Oviparous animals lay eggs outside their body. As a result, the eggs of these animals are under continuous threat from various environmental factors. ... Hence, the offspring of an egg-laying or oviparous animal is at greater risk as compared to the offspring of a viviparous animal, which gives birth to its young ones.
Why would paired external fertilization be preferable to group spawning?
Paired external fertilization allows the female to select the male for mating. It also has a greater chance of fertilization taking place, whereas spawning just puts a large number of sperm and eggs together and random interactions result in the fertilization.
Why does external fertilization need water?
External fertilization in animals usually occurs in water or in damp areas in a process called spawning. Moisture in the environment keeps the gametes from drying out. Moisture is also important so the eggs and sperm can move around freely, which lets them meet and fuse.
Is Mosquito internal or external fertilization?
Fertilization in mosquitoes occurs as eggs are oviposited (Fig. 2).
Why animals exhibiting external fertilization produce a large number of gametes?
The external fertilisation is the process of fusion of male and female gametes outside the body or in outer environment. As animal releases gametes in the external environment, there are the minimum chances of fertilisation and thus, large number of male gametes are produced to ensure better chances of fertilisation.
What is meant by internal fertilization and external fertilization explain with examples?
External fertilization is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body. It is contrasted with internal fertilization, in which sperm are introduced via insemination and then combine with an egg inside the body of a female organism.
