Keystone Species Quiz

Which of the following is NOT mentioned as a keystone species in the passage?

• Bees

• Horseshoe crabs

• Wolves

• Sharks

Based on the passage, which statement is true?

• Keystone species are not important for maintaining ecosystems.

• Bees only sting people and aren't much help.

• Wolves are not predators.

• Beavers create habitats for other animals.

How do beavers influence the flow of water in their habitats?

• By building dams

• By swimming in the water

• By eating vegetation

• By digging burrows

What is the author trying to convey (explain or show) by comparing bees, horseshoe crabs, wolves, and beavers?

• These animals are all endangered.

• These animals have similar habitats.

• These animals all play vital (important) roles in ecosystems.

• These animals are all disliked by humans.

Which animals depend on horseshoe crabs within their ecosystem?

• Wolves

• Bees

• Shorebirds

• Fish

What is the main idea of the passage?

• Keystone species are important for ecosystems.

• Bees, horseshoe crabs, wolves, and beavers are keystone species.

• Keystone species live in different habitats.

• Different creatures have different roles in ecosystems.

Which word or phrase best describes the relationship between keystone species and other organisms?

• Crucial

• Harmful

• a bit helpful

What is the author's purpose in writing this passage?

• To entertain the reader

• To inform the reader about keystone species

• To persuade the reader to protect keystone species

• To describe the different types of ecosystems

Keystone Species get the name "keystone" from a....

• stone arch

• huge tree

• bricks for a house

• scientist

Organize these options into the right categories:

Groups:

(a) Keystone Species

,

(b) Not Keystone Species

• bees

• coyote

• beavers

• wolves

• bears

• horseshoe crabs

• beetles

• elk