Question

Which of the following organism has both endo and exoskeleton?

• A. Cow
• B. Tortoise
• C. Snail
• D. Crab

Answer 1

The correct option is B

Tortoise

Organisms like crab, snail have hard shells. These coverings on the outer surface of the body are called exoskeleton. In organisms like cow the skeleton is present inside the body. This is called endoskeleton. Organisms like tortoise and crocodile posses both exoskeleton and endoskeleton. Tortoise has an outer hard shell and a skeleton inside the body. The crocodile has a tough leathery skin/hide on the outside and then a skeleton inside the body.