Relationships in Ecosystems

What is mutualism?

• One organism benefits greatly and the other is not harmed
• One organism benefits while the other is harmed
• Close relationship where both organisms benefit

Tags

NGSS.MS-LS2-2

A limited supply of food and shelter in the same habitat will lead to -

• mutualism

• parasitism

• competition

• niche

What is the type of symbiotic relationship that helps one organism, but does not harm or help the other?

• parasitism

• mutualism

• commensalism

Fleas and ticks are examples of what?

• predators
• prey
• hosts
• parasites

What is prey?

• An organism that is consumed
• An organism that consumes
• neither

True or False: The population size of predators are equal to the population size of prey.

• True

• False

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which is an example of a mutualistic relationship?

• Cow and grass

• Bird and butterfly

• Cat and mouse

• Bee and flower

An organism that must consume other organisms for nutrients.

• Producers

• Consumers

• Decomposers

• Nutrients

Tags

NGSS.MS-LS2-3

An organism that makes their own food using sunlight.

• Producers

• Consumers

• Decomposers

• Nutrients

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Who is the top, tertiary consumer in this food web?

• Raccoon

• Eagle

• Grass

• Snake