Symbiosis

What is the term for a symbiotic relationship where both species benefit?

• Parasitism

• Mutualism

• Commensalism

• Competition

Which of the following is an example of mutualism?

• A tapeworm in a human intestine

• Bees pollinating flowers

• Barnacles on a whale

• A lion hunting a zebra

Tags

NGSS.MS-LS2-2

In which type of symbiosis does one organism benefit while the other is harmed?

• Mutualism

• Commensalism

• Parasitism

• Amensalism

What is the role of a keystone species in an ecosystem?

• They are the most abundant species.

• They have a large impact on the structure of the ecosystem.

• They are the largest species in the ecosystem.

• They are the most aggressive predators.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is an example of a keystone species?

• Grass in a savanna

• Sea otters in a kelp forest

• Ants in a rainforest

• Pigeons in a city

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What is the first stage of ecological succession?

• Climax community

• Secondary succession

• Pioneer stage

• Intermediate stage

Which of the following best describes commensalism?

• Both species benefit.

• One species benefits, the other is harmed.

• One species benefits, the other is unaffected.

• Both species are harmed.

Which of the following is an example of commensalism?

• Birds eating insects off a buffalo

• Barnacles attaching to whales

• Fleas on a dog

• Wolves hunting in packs

What is the final stage of ecological succession called?

• Pioneer stage

• Climax community

• Intermediate stage

• Secondary succession

Which of the following is an example of an invasive species?

• Kangaroos in Australia

• Zebra mussels in the Great Lakes

• Elephants in Africa

• Penguins in Antarctica