Question

The poisonous teeth of a snake is called as
(A) Fang
(B) Poisonous saliva
(C) Poisonous tongue
(D) None of the above

Answer 1

Hint: The poisonous teeth of the snake are very long and pointed, it is a modified tooth and is mostly hollow or grooved teeth that are connected to a small sac in the snake's head behind its eyes. 

Complete answer:
The poisonous teeth of the snake is called Fang. A fang appears as a long, pointed tooth. In mammals, a fang is a modified maxillary tooth, used for biting and tearing flesh. In snakes, it's a specialized tooth that's related to a venom gland ( snake venom). Spiders even have external fangs, which are a part of the chelicerae.

Additional Information: Fangs are commonest in carnivores or omnivores, but some herbivores, like fruit bats, have them also. they're generally want to hold or swiftly kill prey, like in large cats. Omnivorous animals, like bears, use their fangs when hunting fish or other prey, but they're not needed for consuming fruit. Some apes even have fangs, which they use for threats and fighting. However, the relatively short canines of humans aren't considered to be fangs. The evolution of fang is confused to be whether convergent or divergent; it depends upon a certain experiment. The experiment supports the idea of independent evolution, however, there are some issues which require to be further addressed to cement this position.
So, the correct answer is ‘(A) Fang’.

Note: Most venomous snakes that are present including grass snakes, have fangs positioned within the rear of the mouth, while a couple of groups, including rattlesnakes, cobras, and vipers, have fangs jutting down from their upper jaws within the front of the mouth.