Question

Which of the following snakes is not poisonous?
1. Cobra
2. Python
3. Krait
4. Viper

Answer 1

Correct Answer - Option 2 : Python

Concept:

• Snakes belong to the class Reptilia. They are mostly terrestrial animals and their body is covered by dry and cornified skin, epidermal scales or scutes. They do not have external ear openings. The tympanum represents the ear.
• Reptiles are poikilotherms. Snakes and lizards shed their scales as skin cast. Sexes are separate.
• Fertilization is internal. They are oviparous and development is direct.
• Snakes are of two types Poisonous & Non-poisonous 

Explanation:

• ''Pythons'' are non-poisonous snakes as they do not have fangs. They kill their prey by constriction, literally by squeezing the animal to death
• The major differences between poisonous and non-poisonous snakes are

Poisonous snakes	Non-poisonous snakes
Generally, Bright colored	Usually not bright in color except python, anaconda & wart snakes
The Head is long and triangular in shape	The narrow and elongated head
The neck is always constricted	No constriction is seen in the neck
Large teeth fangs are present	Fangs are absent
Paired poison glands are present on the upper jaw.	Poison glands are absent
Examples: Krait, Viper, Cobra, etc.	Indian Python ), Sand Boa, Checkered keelback, etc.