Habitats, Niches, and Species Interactions

A tapeworm lives in the intestines of a dog. It absorbs food the dog has eaten and grows larger in the process. The dog becomes weaker from malnutrition. What type of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

• predation

Any relationship between two species is called ______________.

• Speciation

• Antagonism

• Partnership

• Symbiosis

Mutualism is when:

• both organisms benefit from the relationship

• only one organism benefits and the other is hurt

• one organism benefits and the other is not affected

Commensalism is when:

• Both organisms benefit from the relationship, this is when BOTH are helped.

• One organism benefits and the other is not affected.

• Only one organism benefits while the other is hurt by the relationship.

• One is helped and the other is harmed.

A ____________ is made up of all the organisms that live in the same place.

• niche

• community

• population

• habitat

Each living thing in an ecosystem has a different role. What does 'role' mean?

• Job, function

• Sun

• Energy

• Air

Parasitism is when:

• One organism benefits and the other is neither helped nor harmed

• Only one organism benefits and the other is harmed

• Both organisms benefit from the relationship

What type of species can withstand a wide variety of environmental conditions?

• Generalist

• Specialist

• Fundamentalist

• Realist

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

What is the term for a place an organism lives?

• Species

• Community

• Niche

• Habitat

What is the general term for the relationship between two organisms?

• Symbiosis

• Mutualism

• Commensalism

• Parasitism