Bones and Muscles

Scientists group living things based on their features. The animals in the diagram have been grouped based on whether or not they _____________

• have skeletons inside their body.

• are animals or insects.

Tags

NGSS.MS-LS4-2

Animals that have skeletons inside their bodies are called _________.

• vertebrates

• invertebrates

Which of these animals are vertebrates? (select all that apply)

• Koala

• Caterpillar

• Elephant

• Ladybird

• Butterfly

Jason is sorting his collection of animal cards into two piles: invertebrates and vertebrates. Which fact is he using to classify the animals?

• skin covering

• size

• backbone or no backbone

• diet

Which diagram shows the skeleton of a human?

• A

• B

• C

• D

What does label B point to in the picture of the skeleton?

• scull

• skull

• head

• brain

Which label points to the ribcage?

What are the three jobs of the human skeleton? (select all that apply)

• to turn food into energy.

• to help you move

• to protect your organs

• to help blood flow through your body

• to support your body.

Your muscles help your skeleton to ___________

• move your body

• protect your organs

• support your body

Tags

NGSS.MS-PS2-2

When you straighten your arm, your triceps muscle __________ and your biceps muscle______________

• relaxes, contract

• contract, relaxes

• contract, contract

• relaxes, relaxes