Community Interactions

Why can't two species occupy the same niche and habitat at the same time?

• Because of the interactions that shape the ecosystem.

• They can unless they require different abiotic factors.

• Because of the competitive exclusion principle.

• They can unless they require different biotic factors.

A symbiotic relationship in which both species benefit:

• commensalism

• mutualism

• predation

• parasitism

A symbiotic relationship in which one organism is harmed and the other benefits:

• mutualism

• parasitism

• commensalism

• predation

An interaction in which an animal feeds on plants:

• carnivory

• herbivory

• predation

• symbiosis

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Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower. This is an example of

• commensalism

• mutualism

• parasitism

• predation

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The crocodile and bird have a _______________ relationship.  The crocodile benefits by having its teeth cleaned.  The bird benefits by gaining food and protection.  Both animals benefit from this relationship.

• parasitism

• predator and prey

• mutualism

• commensalism

Honey guide birds alert and direct badgers to bee hives.  The badgers then expose the hives and feed on the honey first.  Then the honey guide birds eat.  

• mutualism

• commensalism

• predation

• competition

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Rabbits and deer eat lettuce leaves from a garden.

^{What ecological interaction describes the relationship between rabbits and deer?}

• Mutualism

• Competition

• Commensalism

• Predation

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relationship in which two species live closely together

• resource

• mutualism

• succession

• symbiosis

Which term best describes two or more predators living in the same habitat who feed on the same prey?

• coexistence

• competition

• mutualism

• predatory