Interspecific and Intraspecific Relationships in Ecosystems

Which interaction benefits both organisms?

• A flea living on a dog

• A bee pollinating a flower

• A tapeworm living inside an animal

• A mosquito biting a person

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism

• commensalism

• competition

• parasitism

Lions and cheetahs both prefer having gazelles as snacks. What best describes their relationship?

• Dependent Relationship

• Interspecific Competition

• Intraspecific Competition

• Predator Prey Relationship

Tags

NGSS.MS-LS2-2

IntERspecific competition is between...

• the SAME species

• DIFFERENT species

Tags

NGSS.MS-LS2-2

What is mutualism?

• One organism is harmed the other is unaffected.

• One organism is benefiting while one is harmed.

• One organism is benefitting while the other is unaffected.

• Both organisms benefit from the relationship.

What happens to the population of zebra when the population of lions increase?

• Zebra population increases.

• Zebra population decreases.

• Zebra population stays the same.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Humman birds and flowers have a mutualistic relationship. What would happen to the population of flowers as the population of humming birds increased?

• Flower population would increase

• Flower population would decrease

• Flower population stays the same

• Flower population goes extinct

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A mistletoe plant attaches itself to a spruce tree causing harm by absorbs the tree’s water and nutrients. What type of relationship does this describe?

• Mutualism

• Commensalism

• Parasitism

Tags

NGSS.MS-LS2-4

Which type of relationship involves one species benefiting while the other is neither helped nor harmed?

• Mutualism

• Commensalism

• Parasitism

• Predation

In an ecosystem, what is the primary difference between interspecific and intraspecific competition?

• Interspecific is within the same species, intraspecific is between different species

• Interspecific is between different species, intraspecific is within the same species

• Interspecific involves mutualism, intraspecific involves parasitism

• Interspecific involves predation, intraspecific involves commensalism