Carrying Capacity
Biodiversity
Energy & Nutrient Cycling
Symbiosis
Humans & Environment
100

A living or once living thing that affects an ecosystem.

What is a biotic factor?


100

The overall strategy or "job" that a species plays in its ecosystem, and/or its spatio-temporal position within it.

What is a niche?

100

This carbohydrate is the fundamental unit of chemical energy used by almost all known organisms on earth.

What is glucose?

100

The word "symbiosis" is Greek, and translates to this phrase in English.

What is "living together?"

100

When natural areas are effectively erased, causing the things that once lived there to either die or be displaced.

What is habitat destruction?

200

A non-living thing that affects an ecosystem.

What is an abiotic factor?

200

The process by which new species emerge by way of evolutionary processes.

What is speciation?

200

Producers, which create their own bioenergy without needing to consume other organisms are also referred to by this name.

What are autotrophs?

200

A +/+ arrangement between two species.

What is mutualism?

200

The release of artificial materials (solids, liquids, or gases) into natural areas.

What is pollution?

300

Something that affects an ecosystem that depends on the total number of organisms in the area.

What is a density-dependent variable?

300

The process by which a species disappears either locally or entirely.

What is extinction?

300

The amount of energy lost as heat each time you move up a trophic level.

What is 90%?

300

When two or more species are required to interact, otherwise one or more of them will cease to survive.

What is an obligate symbiosis?

300

It has recently been suggested that living within one mile of these may contribute significantly to one's chances of developing neurological disease later in life.

What are golf courses?

400

Something that affects the ecosystem that does not depend on the total number of organisms in the area.

What is a density-independent variable?

400

When two different species attempt to obtain the same types of resources at the same time and place.

What is interspecies competition?

400

The process which converts glucose into useable adenosine triphosphate within cells/organisms.

What is cellular respiration?

400

A relationship between two species in which one is harmed, and the other is neither helped nor harmed.

What is ammensalism?

400

When a species, especially humans, take more resources from an ecosystem than can be replenished before extraction happens again.

What is over-exploitation?

500

When a population as reached it's theoretical carrying capacity, it is said to have reached this.

What is stable equilibrium?

500

Biodiversity is largely a function of this important variable.

What is resource availability/diversity?

500

Consumers, also called heterotrophs, obtain their energy from consuming other organisms. Most consumers do this by way of chemical digestion. Thus they are referred to by this name.

What are chemoheterotrophs?

500

Malassezia globosa is a species of yeast thought to contribute to or directly cause this unsightly condition in humans.

What is dandruff?

500

Habitat destruction and fragmentation is said to cause these around the perimeter of the newly established ecological fragments.

What are edge effects?