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26 Cards in this Set

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Ecosystem

Biotic and abiotic factors that interact to sustain life

Food Web

A complex combination of food chains

Bioaccumulation

The process of harmful molecules building up in organisms through the food chain

Population Density

The number of organisms per unit area. (nopes per square meter)

Carbon cycle

Carbon dioxide is used by the plants to produce glucose which is eaten by animals and released through cell respiration as carbon dioxide.

Nitrogen cycle

Bacteria make nitrogen gas(in the air) accessible to plants. Plants use nitrogen to make proteins which are eaten by animals and releases as waste into the soil.

Biodiversity

Diversity of life

Sustainable

Able to last for a long time

Niche

The specific place for an organism in the ecosystem. A combination of their habitat, relationships and interactions.

Invasive Species

A species that was introduced to an area. Often causes problems by out-competing other species in the area

Native species

A species that has lived in an area for many, many years and fits into the ecosystem well.

Succession

The process of an ecosystem recovering from disaster.

Non-renewable

Sources of energy or resources that will eventually be used up.

Renewable

Sources of energy that can be re-used or that will last forever.

Unintended Consequences

Things that may happen that you did not expect or want

Natural Selection

Survival of the fittest. The organisms with the best traits get to survive and reproduce.

Speciation

The process by which new species are formed

Evolution

Changes in a population over time

Common Ancestor

Two species today may have been linked by this

Embryology

Studying development of organisms

Herbicide

Plant Killer

Pesticide

Bug killer

Carrying Capacity

The number of organisms that can be sustained by an ecosystem

Mutation

Any change in the DNA

Cell Respiration

The process of producing ATP from glucose and oxygen. Happens in all living organisms. Other by-products include carbon dioxide and water

Species

A group of organisms that can reproduce together successfully.