Question

Which of the following is a viviparous snake?
A. Cobra
B. Krait
C. Viper
D. Rat snake

Answer 1

Hint: To carry on with their species, the reptile reproduces by giving birth to live offspring. Almost all of the reptiles lay eggs with shells or shelled eggs with some exceptional ones like snakes.

Complete answer:
When the development of the embryo takes place inside the body of the mother eventually leading to live birth, this mode of reproduction is called viviparity. Snakes like boas, vipers, and sea snakes give birth to live offspring.
These snakes are known as either viviparous or oviparous because they either give birth to live babies or hatch the eggs inside of themselves right before giving birth. Thus they do not lay eggs. Most mammals are viviparous animals. Some other examples include birds, reptiles, amphibians, most fish, insects, mollusks, arachnids, sharks, rays, and insects.

Additional Information:
- Snakes have elongated, legless bodies covered with overlapping scales. They belong to the class Reptilia, phylum chordata, and order Squamata. Its scientific name is serpentes. Snakes are carnivorous animals and are either poisonous (venomous) or non- poisonous (nonvenomous).
- They are cold- blooded animals that regulate their temperature externally.
- Oviparity, as opposed to viviparity, is a method of reproduction in which females lay eggs. These eggs complete their development and hatch externally from the mother body. Animals in which lay eggs are called oviparous animals.
- In other words, oviparity is the expulsion of undeveloped eggs rather than live young ones. As in birds and some reptiles, these eggs may have been fertilized before release, or are to be fertilized externally, as in the case of amphibians and many lower forms.

So, the correct answer is Viper.

Notes:
> The French scientist Mr. Albert Calmette developed the first antivenom in 1895 (against the venom of the cobra). It would be another 30 years before the antivenom was produced in the United States.
> The size of the smallest snake Barbados Threadsnake is 10 cm, and the longest snake is Acrochordus arafurae: 2.5 m. Cobra, krait, and rat snakes are oviparous snakes.
> Only two varieties of snakes that are boas and pythons, give birth to live ones, others lay eggs in a simple nest. The soil temperature decides whether the young one of an oviparous snake will be a male or female.