Question

Which is correct for Indian snakes?
A. Only sea snakes are poisonous
B. Only sea snakes are non-poisonous
C. All sea snakes are poisonous
D. All water snakes are poisonous

Answer 1

Hint: Snakes belong to the class of reptiles which partly live on land and partly in the water. They belong to the phylum Chordata but lack a vertebral column. Sea snakes, or coral reef snakes, are a subfamily of venomous elapid snakes, the Hydrophiinae, that inhabit marine environments for most or all of their lives.

Complete step by step answer: Snakes are carnivorous reptiles that are legless and elongated. They belong to the suborder Serpentes. They are ectothermic amniote vertebrates that are covered in overlapping scales.
-Most snakes are non-venomous except for some that use venom to use it primarily to kill and subdue prey rather than for their self-defense. Some of them possess venom to cause a painful injury or death to humans. The non-venomous snakes either kill by constriction or swallow the prey alive.
-Sea snakes, also known as coral reef snakes are a part of the subfamily of venomous snakes Hydrophiinae. These snakes live in marine environments for most or all of their lives. They are adapted to aquatic life and cannot move on land. They are mostly found in the Indian Ocean and the Pacific Ocean.
-Sea snakes are highly venomous. But at the time of the bite, the venom injection is very rare so the venomous symptoms seen are non-existent. The bites are usually painless when the venom is injected and the contact made may not even be visible. Sometimes, the teeth of the snake remain in the wound. -Usually, there is very little or no swelling at all, and the lymph nodes nearby are not affected. The major symptom of this venom is the rapid breakdown of the skeletal muscle and paralysis. The early symptoms are vomiting, headache, thirst, and sweating. This venom is very slow and can take hours to reach the body.
Hence, the correct option is C.

Note: Snakes belong to Reptilia class. Reptiles are vertebrates that have special skin which is covered up in scales, bony plates, or both. Some of the common reptiles are snakes, crocodiles, lizards, and turtles. All the animals belonging to this class regularly shed their outer skin.