Energy flow Review Env

Front

What are decomposers?

Back

Decomposers are organisms that break down dead or decaying organic material, returning nutrients to the ecosystem. Examples include fungi and bacteria.

Front

What is the role of energy in a food web?

Back

Energy flows through a food web, providing the necessary power for each trophic level to sustain life.

Front

What happens to energy as it moves up trophic levels?

Back

As energy moves up trophic levels, approximately 90% of it is lost as heat, leaving only about 10% available for the next level.

Front

Why do higher trophic levels have fewer organisms?

Back

Higher trophic levels have fewer organisms because the energy available for use decreases significantly as it moves up the food chain.

Front

If a plant has 20,000 kcal of energy, how much energy is passed to the insect at the next trophic level?

Back

2,000 kcal of energy is passed to the insect.

Front

What is a trophic level?

Back

A trophic level is a position in a food chain or food web, defined by how an organism obtains its energy.

Front

What are primary producers?

Back

Primary producers are organisms, like plants and algae, that produce energy through photosynthesis, forming the base of the food chain.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which energy flows, while a food web is a complex network of interconnected food chains.

Front

What is the significance of photosynthesis in energy flow?

Back

Photosynthesis is the process by which primary producers convert sunlight into chemical energy, which is then passed through the food chain.

Front

What are herbivores?

Back

Herbivores are organisms that primarily consume plants and are typically found at the second trophic level.