AICE ENVT MANAGEMENT VOCABULARY

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30 Terms

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Sustainability

The ability to meet the needs of the present without compromising the ability of future generations to meet their own needs.

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Biome

A large ecological zone characterized by soil, climate, vegetation, and wildlife.

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Ecosystem

A biological community of organisms interacting with each other and the physical environment.

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Population

A group of organisms of the same species living within an ecosystem.

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Community

The different populations that live together in an ecosystem.

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Habitat

The place that an organism makes its home.

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Niche

The role and position that a species fill in an ecosystem.

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Photosynthesis

The process by which plants synthesize glucose using carbon dioxide, water and energy from sunlight.

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Producer

The organism within a food chain that produces its own food source through photosynthesis.

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Primary Consumer

Only eat primary producers to obtain energy.

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Secondary Consumer

Eat organisms from the first two trophic levels, that is plants and animals.

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Tertiary Consumer

Eat organisms from the trophic level below them, that is producers, primary consumers, and secondary consumers.

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Decomposer

An organism that breaks down organic material. Do not belong to a specific trophic level.

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Trophic Levels

Feeding levels within food chains.

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Aerobic Respiration

The chemical reactions in cells that break down glucose molecules and release energy, carbon dioxide and water.

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Bias

When a scientist knowingly or unknowingly incorporates systematic errors into a sampling or testing by selecting or encouraging one outcome over the other.

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Reliable Data

Data that is reasonably complete and accurate, works towards answering the hypothesis in a clear and transparent manner and has not been inappropriately altered.

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Dependency Ratio

The measure of the dependent (non-working) portion of the population compared to the total independent (working) portion of the population.

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Gross Primary Productivity

The rate at which producers convert solar energy into biomass.

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Net Primary Productivity

The rate at which producers convert solar energy into biomass minus the loss of energy through respiration.

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Ecosystem Productivity

The rate of production of biomass for an ecosystem.

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Native Species

A species that originated and developed in a specific ecosystem or region and has adapted to living in that area.

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Invasive Species

A species that is able to outcompete other species, causing changes to an ecosystem's balance.

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Food Security

When all people, at all times, have physical, social and economic access to sufficient, safe and nutritious food.

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Energy Security

The reliable availability of energy sources at an affordable price with a consideration of the environmental impacts.

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Water Security

The ability to access sufficient quantities of clean water to maintain adequate standards of food and sanitation.

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Acid Deposition

A mix of air pollutants that deposit from the atmosphere as acidic wet or dry deposition.

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Photochemical Smog

A mixture of air pollutants and particulates formed when oxides of nitrogen and volatile organic compounds react in sunlight.

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Ozone Hole

An area where the average concentration of ozone is below 100 Dobson Units.

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Greenhouse Gases

Gases in the atmosphere that absorb infrared radiation.