Elly is studying different ways that animals' external structures help protect them. Which structure should Elly study?

• heart

• scales

• skeleton

• lungs

Which describes an external characteristic of an animal?

• A bear's loud roar

• A bird's blue feathers

• A human's long bones

Which external structure of an animal provides the best protection from a very wet environment?

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External structures can help animals survive. Sharp structures on the feet of some animals are called ______

• claws

• beaks

• eyes

Tags

NGSS.4-LS1-1

Lakes are home to many kinds of birds. Which feet are most likely found on a bird that swims in water to find food?

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Tags

NGSS.MS-LS4-4

A horse has teeth that are flat instead of pointed. Which of these does a horse’s teeth help the horse do?

• eat grass

• catch prey

• drink water

• avoid danger

The main food of birds that live in an area is a tree that produces nuts with a hard shell. Which beak shape are birds that live there most likely to have?

• long and thin

• flat and wide

• thick and strong

• sharp and pointed

Tags

NGSS.MS-LS4-4

A snail is an animal that lives in ponds, lakes, and rivers. How does the snail use the structure labeled X?

• to find food

• to reproduce

• to digest its prey

• to protect itself from predators

The main sources of food for birds that live in a grassland are seeds, mice, and burrowing insects. Which bird beak would be the least useful in a grassland?

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Tags

NGSS.MS-LS2-1

NGSS.MS-LS4-4

Explain how the hard shell of a turtle helps the turtle stay alive.

Tags

NGSS.MS-LS4-4