What is the musculoskeletal system made of?

• muscles and bones

• chips and salsa

Why is the musculoskeletal system important?

• it protects important organs and forms the body

• it isn't important

Fill in the blank.

Muscles and bones work together to create different _.

• movements

• salad

Fill in the blank.

The muscle pulls on the _ and moves it.

• bones

• hand

True or False?

Animals, including humans, are the only type of organism with a musculoskeletal system.

• True, animals are the only type of organism with a musculoskeletal system.

• False, other organisms have musculoskeletal systems too.

What are animals with bones called?

• vertebrates

• invertebrates

What are animals WITHOUT bones called?

• vertebrates

• invertebrates

What does the word elastic mean? Read the sentence below.

"All muscles are elastic, similar to a rubber brand."

• stretchy

• fragile

True or False?

Most body movements use multiple muscles.

• True, most body movements use multiple muscles.

• False.

How are muscle cells made?

• by eating protein

• by eating lots of fats