Ecosystem Relationships

What is an ecosystem comprised of?

• Only abiotic factors

• Only biotic factors

• Both biotic and abiotic factors

• Neither biotic nor abiotic factors

Tags

NGSS.MS-LS2-3

What happens when more than one individual or population in an ecosystem relies on the same limited resources?

• Symbiosis

• Mutualism

• Competition

• Predation

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is NOT a common limiting factor in ecosystems?

• Sunlight

• Shelter

• Temperature

• Hierarchy

• Water

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is predation?

• The interaction between two animals where one animal shelters the other

• The interaction between two animals where one animal eats the other

• The interaction between two animals where both benefit from each other

• The interaction between two animals where one competes for resources

Tags

NGSS.MS-LS2-2

Select the 3 types of symbiotic relationships?

• parasitism

• predatory

• commensalism

• mutualism

• competition

In mutualism, how do the organisms involved benefit?

• Only one organism benefits while the other is unaffected

• Both organisms are harmed

• Both organisms benefit from the relationship

• One organism benefits at the expense of the other

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is an example of commensalism?

• A tick feeds on a cat's blood

• Barnacles attach to whales for transportation and food

• A prairie bird eats insects from a buffalo's fur

• An orchid harms the tree it grows on

Which of the following best describes parasitism?

• Both organisms benefit equally

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

• One organism benefits at the expense of the other, which may be harmed or killed

• Both organisms are unaffected by the relationship

Tags

NGSS.MS-LS2-4

Label each relationship.

b

c

d

Commensalism

Mutualism

Predatory

Parasitism

Tags

NGSS.MS-LS2-2

• Orchids grow on trees to get better access to water and sunlight, but the tree is not affected. This is an example of ​ (a)   .

• commensalism
• predation
• parasitism
• mutualism
• population