viviparous

Examples of viviparous in the following topics:

• External and Internal Fertilization

  • There are three ways that offspring are produced following internal fertilization: oviparity, ovoviparity, and viviparity.
  • In viviparity, the young develop within the female, receiving nourishment from the mother's blood through a placenta.
  • This occurs in most mammals, some cartilaginous fish, and a few reptiles, making these animals viviparous.

• Characteristics of Reptiles

  • Other species are viviparous, with the offspring born alive.

• Phylum Chordata

  • Animals can be oviparous (lay eggs) or viviparous (birth live young).

• Cleavage of the Zygote

  • On the other hand, meroblastic cleavage occurs in animals whose eggs have more yolk, such as birds and oviparous reptiles (although some viviparous reptiles also exist).