Exam 8: Patterns of Life: Biogeography

An omnivore occupies more than one trophic level in its ecosystem.

Mountain ranges are dispersal barriers for all organisms.

About __________ non-native species have been successfully introduced into the United States.

Scientists have named and identified 1.7 million different species.

Small islands that are geographically isolated from the mainland and have no neighboring islands are colonized through what means of dispersal?

An organism that consumes only plants is a(n) __________.

Biodiversity is the __________.

The coconut was brought to Hawai'i in about __________.

Which is not an adaptation to fire by plants?

What group of plants produces flowers that attract animal pollinators and produce seeds and fruit?

An earthworm is a __________.

An organism that keeps a constant body temperature is called __________.

A __________ is a stage of vegetation succession that follows ecological disturbance.

Long-distance dispersal to remote islands is called sweepstakes dispersal.

Most mammals are generalists.

Which is not one of the consequences of fire suppression?

The cattle egret is an example of both invasion and natural colonization.

The fire-return interval for the forests of the Pacific Northwest is higher than the fire-return interval for grasslands of the Great Plains.

Which could be a biological limiting factor for an organism?

Organisms that are mostly land dwelling, protected with scales, and most lay soft-shelled eggs are what?