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Viviparity is the development of young within the body of the mother, where the mother's body supplies all of the nourishment necessary for the development of the foetus. Human beings are a viviparous species. Oviparity is the development of young within an egg which is deposited outside the body of the mother and hatches outside. The nourishment which the infant needs is wholly contained in the egg. Ovoviviparity is a system midway between the two, where an egg is created with nourishment enough for the infant to grow, but it is not laid, but hatches within the body of the mother. To external appearance, an ovoviviparous species appears to be a viviparous one.
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Why did oviparous evolved into viviparous?
The two reasons for vertebrates to evolve from oviparity ( Egg-laying) to viviparity (Giving live birth) are :- 1. To increase the number of successful births as in viviparity the offspring is protected by the mother whereas in oviparity eggs laid can easily be eaten by other animals. Hence viviparity is selected by natural selection and they evolved to viviparity. 2.In oviparity the youngs developed are mostly poor as no care is given by the mother. In viviparity the youngs get full care from the mother in terms off oxygen and nutrients so the youngs developed are more healthy in viviparity. So they were selected by natural selection and were evolved to viviparity.
How do Sharks have pups?
Sharks have three different ways of reproducing, oviparity, viviparity, and ovoviviparity. During oviparity they lay eggs in the ocean. During viviparity they nourish the pups through placental links, much like mammals, and the pups are born fully functional. During ovoviviparity, eggs develop inside the oviduct of the mother and then hatch inside the oviduct where they finish their development using the remaining egg content to make pups born fully functional.
What is the difference between a male and female anus?
There is no difference.
What is the difference between female and male anus?
There is no difference.
What is the difference between a male and a female coyote?
what is the difference between a male coyoted and a female coyoted
What are the two types of snake reproduction called?
I think you're referring to Viviparity - when the female incubates the developing embryos inside her body, giving birth to 'live' young - and Ovoviviparity which means the female lays immature eggs which develop and hatch to release the fully-formed babies.
Why did oviparous evolved into viviparous?
The two reasons for vertebrates to evolve from oviparity ( Egg-laying) to viviparity (Giving live birth) are :- 1. To increase the number of successful births as in viviparity the offspring is protected by the mother whereas in oviparity eggs laid can easily be eaten by other animals. Hence viviparity is selected by natural selection and they evolved to viviparity. 2.In oviparity the youngs developed are mostly poor as no care is given by the mother. In viviparity the youngs get full care from the mother in terms off oxygen and nutrients so the youngs developed are more healthy in viviparity. So they were selected by natural selection and were evolved to viviparity.
What is the name for egg bearing snakes?
The technical term is Ovoviviparity
How are oviparous, viviparous, and ovoviviparous different?
No placenta in viviparous and oviparous but there is placenta in ovoviviparity
What 5 reptiles give birth to young alive?
Five reptiles that give birth to live young include the boa constrictor, garter snake, green sea turtle, viviparous lizard, and some species of skinks. Unlike most reptiles that lay eggs, these species exhibit viviparity or ovoviviparity, where the young develop inside the mother and are born alive. This reproductive strategy can provide advantages in certain environments, such as increased survival rates for the offspring.
What are thetwo different ways by which animals gives birth to their babies?
Animals give birth primarily through two methods: viviparity and oviparity. Viviparous animals, like mammals, give birth to live young after developing them inside the mother's body. In contrast, oviparous animals, such as birds and reptiles, lay eggs that develop and hatch outside the mother's body. There are also some exceptions, like ovoviviparity, where eggs hatch inside the mother, leading to live birth.
How do anacondas produce young?
By a process called ovoviviparity. The mother keeps the eggs inside of her body until they hatch.
How do Sharks have pups?
Sharks have three different ways of reproducing, oviparity, viviparity, and ovoviviparity. During oviparity they lay eggs in the ocean. During viviparity they nourish the pups through placental links, much like mammals, and the pups are born fully functional. During ovoviviparity, eggs develop inside the oviduct of the mother and then hatch inside the oviduct where they finish their development using the remaining egg content to make pups born fully functional.
What is difference between as on and as at?
difference between as on and as at
What are the differences between California and Florida?
What is the difference between Florida and California What is the difference between Florida and California
What is the difference between physician and doctor?
what's the difference between physician and doctorwhat's the difference between physician and doctor what's the difference between physician and doctor
What is the difference between difference and difference?
The answer of difference
