Select the correct definition of Skull.

• A plastic structure that protects the brain.

• It protects the brain.

• It protects the brain but can also sometimes damages it.

• A bony structure that protects the brain.

When we bend our arm which muscles relax and which contracts?

• Bicep muscles contract and Triceps muscles relax.

• Bicep muscles relax and Triceps muscles contract.

When we straight our arm which muscles relax and which contracts?

• Bicep muscles contract and Triceps muscles relax.

• Bicep muscles relax and Triceps muscles contract.

Which skeleton do humans have?

• endoskeleton

• exoskeleton

Which skeleton do animals have?

• exoskeleton

• endoskeleton

What makes our bones stronger?

• Calcium

• Chocolate

• Milk

• Protein

Correct definition of cell.

• The smallest unit of life.

• A collection of cells of same kind.

Which is the upper arm bone called?

• Humerus

• Ulna

• Radius

• Femur

Number of bones in Ribcage are

• 12 pairs 33 bones

• 12 pairs 24 bones

• 10 pairs 20 bones

• 14 pairs 77 bones

Scientific name of Skull is

• Cranium

• Femur

• Sternum

• Chocolate