Biology - Chapter #14

____ states that when two species are competing for the same resources, one species will be better suited to the niche, and the other species will either be pushed into another niche or will become extinct.

• Ecological equivalent

• Competitive equivalent

• Competitive exclusion

• Ecological exclusion

A(n) ____ includes all of the living and nonliving components of an area in which an organism lives.

• environment

• habitat

• ecological niche

• answer not given

The part of an area that a species uses to survive and reproduce is called a(n)

• ecological niche.

• habitat

• environment.

• answer not given

In the late 1980s several forest fires occurred in Yellowstone National Park. What process occurred after these fires?

• primary succession

• pioneer succession

• symbiotic succession

• secondary succession

The kangaroo and the white-tailed deer are both large herbivores. They occupy similar niches but live on different continents so they are an example of

• competitive exclusion.

• niche partitioning.

• ecological equivalents.

• competitors.

Giant pandas are solitary and have specific areas where they hunt for food. What type of population dispersion would you expect pandas to have?

• uniform dispersion

• competitive dispersion

• random dispersion

• clumped dispersion

Hawks eat field mice. Field mice are part of the hawk's

• abiotic conditions.

• ecological niche.

• local habitat.

• biotic factors.

Which of the following is a density-independent

limiting factor?

• a decline in predators

• a volcanic eruption

• not enough food

• an increase in population

Which of the following is most similar to parasitism?

• commensalism

• mutualism

• predation

• interspecific competition

____ is a close ecological relationship between two or more organisms of different species.

• Mutualism

• Commensalism

• Parasitism

• all of the above