Animal Internal & External structures

To understand how animals protect themselves, which structure would be most helpful to study?

• Tongue

• Shell

• Lungs

• Brain

Look at the picture.

Which external structure protects the animal in the picture?

• Scales

• Feathers

• Skin

• Exoskeleton

Which describes an external characteristic of an animal?

• a fish’s shiny scales

• a dog’s lungs

• a frog’s heart

• a turtle's skeleton

An animal uses its lungs to get oxygen from the air. Which other internal structure works in a similar way?

• Ears

• Brain

• Gills

• Heart

Which animal has an exoskeleton?

• 
• 
• 
• 

Tags

NGSS.MS-LS4-2

1. Which structure that best provides protection from a very wet environment. 

• fur

• scales

• feathers

• claws

An organism ___________________ to create more of its own kind.

• grows

• survives

• eats

• reproduces

Tags

NGSS.MS-LS1-4

NGSS.MS-LS3-2

NGSS.MS-LS4-4

Sharp structures on the feet of some animals are called ______________________ .

• Prey

• Talons

• Wings

• Plants

Tags

NGSS.MS-LS4-2

Talons help animals catch ________________________. Beaks and teeth are other sharp external structures that help animals survive.

• Prey

• Talons

• Wings

• Plants

The lungs allow(s) mammals to breathe. Air containing _________ flows in

• oxygen

• carbon dioxide