Ecology & Human Impact

Front

What is Parasitism?

Back

A relationship between two organisms where one organism benefits at the expense of the other, causing harm to the host.

Front

What is Commensalism?

Back

A relationship between two organisms where one benefits and the other is neither helped nor harmed.

Front

What is Mutualism?

Back

A relationship between two organisms where both benefit from the interaction.

Front

What is a Trophic Level?

Back

Each level in a food chain or food web, representing the flow of energy and nutrients.

Front

What percentage of energy is typically transferred from one trophic level to the next?

Back

Approximately 10%.

Front

If a producer has 3000 kcal of energy, how much energy is available to secondary consumers?

Back

30 kcal.

Front

What is Biomagnification?

Back

The process by which the concentration of toxins increases in organisms at each successive trophic level.

Front

Which natural resource is most affected by erosion, drought, and overgrazing?

Back

Land.

Front

What is the role of producers in an ecosystem?

Back

Producers convert solar energy into chemical energy through photosynthesis, forming the base of the food chain.

Front

What is a Food Chain?

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.