This is the movement of individuals out of an area.

Growth rate where individuals reproduce at a constant rate.

A lack of resources can lead to ___________ growth.

Number of individuals per unit area.

Any environment can only support a maximum population of individuals. This is called:

A limiting factor will can cause a population's growth to ____________.

Competition, Predation, Parasitism, and Disease are all examples of Density-_____________ Limiting Factors.

This is not a Density-Independent Limiting Factor:

(HINT: ABIOTIC factors are usually Independent)

Where an organism lives.

The role played by an organism within its ecosystem. The way this organism uses its physical and biological conditions.

A symbiotic relationship where one individual is helped, and the other is harmed.

A symbiotic relationship where both individuals benefit.

A symbiotic relationship where one individual is helped, and the other is neither helped nor harmed.

An interaction where one animal captures and feeds upon another animal.

Living organisms

Non-living factors of an environment

Occurs slowly, requires pioneer species, nothing previously there or previous ecosystem completely wiped out from a major disaster

Faster, soils undisturbed, same (or similar) climax community

Select the example of Secondary Succession

The first organisms to settle a new area

Many different species living in the same area.

Nutrients such as water, carbon dioxide, oxygen, and nitrogen move in and out of the biosphere in ______.

Why would Carbon and Oxygen have similar cycles in the biosphere?

The process of turning Nitrogen gas into ammonia

The process of nitrogen converting to ammonia during the decomposition of dead organisms.

The process of microbes (bacteria) converting nitrates into Nitrogen gas that reenters the atmosphere.

The process of microbes (bacteria) converting ammonia into nitrates in the soil.

Energy flows through ecosystems, but each organism only gets about _____ of the energy available in the level below.

A food ________ is much more complicated, yet more realistic than a food ________.

What is the original energy source?

Who is the producer?

Who is the primary consumer?

Who is a secondary consumer?

Select one food chain from this food web.

When organisms die, they are consumed by scavengers and broken down by ____________.

Covers most of the Earth's surface

Compares energy of each trophic level

Community that is stable if left undisturbed

Gradual replacement of populations in an area