HW: Ecology #2

Front

What is the energy transfer efficiency between trophic levels in an ecosystem?

Back

On average, about 10% of energy is transferred from one trophic level to the next, meaning that approximately 90% of energy is lost.

Front

If Level 4 has 80 calories, how many calories does Level 2 have?

Back

Level 2 has 8000 calories.

Front

How many calories does Level 1 have if it has 9000 calories?

Back

Level 2 would receive 900 calories.

Front

What is the energy available to the first consumer level if the producer level has 2000 calories?

Back

The first consumer level would get 200 calories.

Front

What type of organisms are seaweed and algae classified as in an ecosystem?

Back

Seaweed and algae are considered producers.

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 happens to energy as it moves up the food chain?

Back

Energy decreases as it moves up the food chain due to energy loss at each trophic level.

Front

What is a trophic level?

Back

A trophic level is a position in a food chain or food web that indicates the organism's role in the flow of energy and nutrients.

Front

What percentage of energy is typically lost at each trophic level?

Back

Typically, about 90% of energy is lost at each trophic level.

Front

What is the significance of energy loss in ecosystems?

Back

Energy loss limits the number of trophic levels in an ecosystem and affects population sizes.