Interactions Within Ecosystems

Barnacles do not affect whales as they grow, but receive the benefit of a food source. This is

• parasitism

• mutualism

• commensalism

• neutralism

Samantha plants some flowers in a flower bed and then ignores them. Soon weeds grow and the flowers die. The weeds had been able to get enough resources to survive, while the flowers had not. This is an example of _____.

• competition

• population size

• habitat

• community

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Some populations have cooperative relationships. This is where _____.

• members of the same species compete for resources

• members of different species compete for resources

• members of the same species work together for survival

• members of different species work together for survival

A symbiotic relationship in which one species benefits and the other is not affected is called .

• mutualism

• commensalism

• parasitism

A symbiotic relationship in which one species benefits and the other is harmed is a what kind of relationship?

• parasitism

• mutualism

• commensalism

Hawks hunt and eat mice. Hawks and mice have a ____________ relationship.

• predator-prey

• competitive

• cooperative

Define Symbiosis

(a)  

Tags

NGSS.MS-LS2-2

In mutualism, what is the outcome for the species involved?

• Both species are harmed

• One species benefits, the other is harmed

• Both species benefit

• One species benefits, the other is unaffected

Both owls and snakes preying on mice in a forest is an example of .

(a)  

what is parasitism?

• not harmed and benefit

• benefit one species and harm the other