Chapter 12 Part B

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Which principle states that no two species competing for the exact same resources can coexist?

Competitive exclusion principle

What type of species, if removed from the community, could lead to the collapse of the entire community?

Keystone species

At what level is biodiversity often studied and measured?

The diversity of genes in a population The diversity of species in a community The diversity of ecosystems on the planet

The tendency of toxins to accumulate in top predators is called biological ________.

biological magnification

The use of multiple forms of pest control including biological, chemical, and the planting of pest-resistant crops is a strategy commonly called ________.

integrated pest management

The Asian kudzu bug (Megacopta cribaria) arrived in Atlanta in 2009 and is quickly spreading across the South. In addition to eating kudzu, it also eats soybeans and can decimate entire crops. The kudzu bug is a type of ________ species.

invasive

There are little birds that spend a great deal of time on the back of a rhinoceros and eat the blood-sucking ticks out of the rhino's ears. The bird-tick relationship is an example of ________.

predator-prey

The buildup of soil on bare rock by the decomposition of early colonizers is characteristic of ________ succession.

primary

A wolf eats a rabbit that eats grass. The grass is a ________.

producer

Species diversity is highest when ________.

species richness is high and relative abundance is evenly distributed


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