Survival When Environments Change

How do the spines of a cactus help it survive?

• Spines help the cactus get moisture.

• Spines anchor the cactus in the ground.

• Spines protect the cactus from animals.

• Spines support the stems and branches of the cactus.

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NGSS.MS-LS4-4

​Lemurs are mammals that live high up in the trees of tropical forests. Which of the following adaptations helps lemurs live in tropical trees?

• Gray fur that keeps them warm in cool weather.

• Long tails that can be curled around tree branches.

• Black eyes that allow them to see well at night.

• Sharp teeth that can be used to tear apart food.

A green tree frog lives in a forest. How does the frog's green color help it to survive?

• By helping the frog find other frogs

• By keeping the frog cool

• By making the frog hard to see when sitting on leaves

• By allowing the frog to make its own food

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NGSS.MS-LS4-4

The increase in mosquitoes has an impact on other animals too. The word impact means to

• die off

• have a strong effect on

• survive

• hibernate

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NGSS.MS-LS2-4

Skunks rest when less food is available for them to eat. That is an example of skunks

• hibernating

• migrating

• exploring

• molting

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NGSS.MS-LS2-4

NGSS.MS-LS2-1

Geese usually fly South during the winter. That means geese ____________.

• explore

• migrate

• hibernate

• molt

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

Snakes shed their skin as they grow. That means snakes ________ their skin as they get older.

• hibernate

• migrate

• eat

• molt

When a plant goes dormant in the winter, the plant

• is slowly dying

• protecting itself from predators

• goes into a state of rest

• is falling apart

What is one way an animal responds to changes in their environment?

• Geese migrate to a warmer place during the Winter.

• Hawks eat more food during the Spring,

• Fish live deeper underwater during the Winter.

• Bison protect their baby bison from predators.

A storm destroys an eagle nest in a tree. As a result, eagles will _________ to another tree.

• adapt

• molt

• jump

• migrate

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NGSS.MS-LS2-4