Community Ecology: Feel the Love - Crash Course Ecology #4

Whenever species compete, they’re going after the ___________ that they need for their survival and continued

population growth.

• ONLY TREES

• SAME RESOURCES

• ONLY OIL

• ONLY DORITOS

THIS IS when two species are competing for the same resources, one of them is eventually going to be more successful and eliminate the other.

• NON COMPETITIVE EXCLUSION PRINCIPLE

• COMPETITIVE INCLUSION PRINCIPLE

• COMPETITIVE EXCLUSION PRINCIPLE

• COMPETITIVE NICHE EXPERIMENT

If competitive exclusion is the natural law of the land, then why isn’t all of earth constant competition, predation, and extinction?

• because not all resources are limiting; most species are adaptable enough to find a way to survive in the face of competition

• because all resources are limiting; most species are adaptable enough to find a way to survive in the face of competition

• because not all resources are limiting; but no species are adaptable enough to find a way to survive in the face of competition.

• because when the lights go out and the animals come out extinction is an after thought

You can think of an organism’s ______________ as its job in the community that provides it with a certain lifestyle.

• NICHE

• NACHO NICHE

• COMMUNALISM

• MUTUALISM

THIS IS WHEN both species benefit

• FUDALISM

• NICHE

• COMMUNALSIM

• MUTUALISM

THIS is where one species definitely benefits and the other isn’t really hurt or helped.

• COMMENSALISM

• MUTUALISM

• FEUDALISM

• NICHE

The ___________ IS DIFFICULT TO PROVE because even a seemingly benign interaction probably has some effect.

• mutualism

• cancer

• niche

• commensalism

WHAT IS AN EXAMPLE OF COMMENSALISM?

• WHALES AND IRELAND

• WHALES AND BARNACLES

• CATS AND BARNACLES

• BARNACLES AND FISH STICKS