What is an advantage of viviparity?
Viviparity is a reproductive pattern in which females retain developing eggs inside their reproductive tracts or body cavity and give birth to offspring capable of a free-living existence. An advantage of viviparity, for example, is that embryos are protected and physiologically maintained by the pregnant female.
What is the difference between oviparity and viviparity?
The main difference between oviparous and viviparous animals is that oviparous animals do not undergo any embryonic development inside the mother whereas viviparous animals develop into a young animal inside the mother. This means oviparous animals lay eggs. These eggs develop and hatch into young individuals.
What is the meaning of oviparity?
oviparity, expulsion of undeveloped eggs rather than live young. The eggs may have been fertilized before release, as in birds and some reptiles, or are to be fertilized externally, as in amphibians and many lower forms.
What is an advantage of viviparity quizlet?
Viviparity usually increases the likelihood that developing offspring will survive until birth but te mother can produce less young.
What are some of the advantages and disadvantages of giving live birth of Oviparity?
An advantage of oviparity is the number of eggs produced, because it is likely some of the offspring will survive. However, the offspring are at a disadvantage because they must go through a larval stage in which their location is directed by oceans currents.
What are the advantages and disadvantages of external fertilization?
External fertilization in an aquatic environment protects the desiccation of eggs. Broadcast spawning leads to higher genetic diversity due to a larger mixing of genes within a group. The chances of survival of the species also increase.
What is the characteristics of oviparity?
An oviparous animal is one that produces eggs, and the young hatch after being expelled from the body. While fertilization of the egg can occur internally or externally, oviparous animals always hatch their young outside of their body.
What is oviparity and Vivi parity?
Among animals, viviparity is development of the embryo inside the body of the parent. This is opposed to oviparity which is a reproductive mode in which females lay developing eggs that complete their development and hatch externally from the mother.
What is description of viviparity?
Definition of viviparous 1 : producing living young instead of eggs from within the body in the manner of nearly all mammals, many reptiles, and a few fishes.