LS2.4 BIO1 Review

Front

What is the 10% Rule in energy transfer between trophic levels?

Back

The 10% Rule states that only about 10% of the energy from one trophic level is transferred to the next level, while the rest is lost as heat or used for metabolic processes.

Front

What happens to energy as it moves up the food chain?

Back

As energy moves up the food chain, it decreases significantly due to energy loss as heat and through metabolic processes.

Front

Define producers in an ecosystem.

Back

Producers are organisms, such as plants and algae, that can make their own food through photosynthesis and form the base of the food chain.

Front

What are primary consumers?

Back

Primary consumers are herbivores that eat producers to obtain energy.

Front

What are secondary consumers?

Back

Secondary consumers are carnivores that eat primary consumers to obtain energy.

Front

What is an omnivore?

Back

An omnivore is an organism that eats both plants and animals.

Front

Explain the concept of a food web.

Back

A food web is a complex network of interconnected food chains in an ecosystem, showing how energy and nutrients flow between different organisms.

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 energy.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and completing the nutrient cycle.

Front

How does energy flow in an ecosystem?

Back

Energy flows in one direction through an ecosystem, from producers to various levels of consumers.