Ecosystems Pulse Check

Looking at the grassland food chain, what would happen if all the gazelles died out?

• Nothing would happen.

• The lions would only be able to eat the zebras, which would cause too many zebras to be eaten and then they would all die out.

• There won’t be enough grass to feed the zebras.

• The lions will start to eat grass.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

An organism that eats only plants.

Examples: koala, rhinoceros, hippopotamus, and kangaroo 

• herbivore

• carnivore

• omnivore

An organism that eats only meat 

Examples: tiger, lion, anteater, and walrus 

• herbivore

• carnivore

• omnivore

An organism that eats both plants and animals 

Examples: bear, raccoon, and lizard 

• herbivore

• carnivore

• omnivore

The image provided shows a food chain. Which of the locations shows an organism that is a carnivore? Select the correct answers.

• Grasshopper

• Bluebird

• Snake

• Mushroom

Tags

NGSS.MS-LS2-2

Bears, hedgehogs, and bats are examples of organisms that decrease the amount that they eat and sleep for long periods during winter. This is called–

• hibernation.

• migration.

• dormancy.

• all of the above.

Why do organisms hibernate?

• Because it helps them survive in their environment.

• Because it is a random behavior with no specific purpose.

• Because it is a learned behavior from other species.

• Because it is a result of genetic mutation.