Question

Which of the following is a non-poisonous snake?
A. Cobra
B. Python
C. Viper
D. Krait

Answer 1

Hint: Snakes are elongated, legless reptiles of suborder Serpentes. They are carnivorous. They have venom which they use to kill their prey. Some possess venom which can kill humans.

Complete Answer:
- Snakes are ectothermic. They are vertebrates which release ammonia as excretory material. They are covered with overlapping scales.
- The snakes have skulls with many joints which help them swallow prey larger than their head. They have a pair of kidneys and single lungs. Snakes lack eyelids and external ears. The lizard is regarded as the ancestor of snakes.
- Many snakes like cobra and viper use the venom to immobilise their prey. Venom is a complex protein which is stored at the back of the head. Venom is modified saliva which is delivered through fangs. It is live salivary secretion which helps in breakdown of food.
- The proteins in the venom are the mixture of neurotoxins, hemotoxins, cytotoxins, bungarotoxin and other toxins which affect the body in multiple ways.
Python- It is non –poisonous snakes which do not attack humans until harmed.
Krait- It is a highly poisonous snake belonging to the cobra family.

Thus the correct answer is (B). Python is a non poisonous snake.

Note: Non-venomous snake bite can cause tissue damage. Many birds and mammals eat venomous snakes. They are immune to the venom. All snakes are poisonous to some extent only the delivery organ i.e. the fangs can be weak.