Skeletal and Muscular Systems practice

What is an exoskeleton?

• a mechanical skeleton used in machines.

• a skeleton that is inside an organism's body (an internal skeleton)

• a skeleton that is on the outside of an organism's body (an external skeleton)

• a skeleton made of muscle

What is an endoskeleton?

• a mechanical skeleton used in machines.

• a skeleton that is inside an organism's body (an internal skeleton)

• a skeleton that is on the outside of an organism's body (an external skeleton)

• a skeleton made of muscle

Organisms that have an exoskeleton include

• jellyfish

• trees and mushrooms.

• lobsters and insects

• humans, dogs, and sharks

Organisms that have an endoskeleton include

• jellyfish

• trees and mushrooms.

• lobsters and insects

• humans, dogs, and sharks

Which of the following is NOT a job of the skeletal system?

• protect the body against infections

• giving shape to the body

• protect important organs, including the spinal cord

• make blood cells

What is cartilage?

• an exoskeleton found in sharks and some simple vertebrates

• bones that provide support to your knee

• a tough, flexible tissue that gives shape to your ears and nose

• none of these

Before a baby is born, most of its skeleton is made up of __________.

• cartilage

• bone

• muscle

• carbon steel

A very hard, rigid tissue that makes up the skeletal system is__________ tissue.

• cartilage

• bone

• muscle

• carbon steel

The backbone is made up of bones called __________.

• the femur.

• the cranium.

• phalanges

• vertebrae.

Tags

NGSS.MS-LS4-2

The brain is protected by bones called __________.

• the femur.

• the cranium.

• phalanges

• vertebrae.