Lesson 16: Energy Flow

Front

What is the primary source of energy for all life on Earth?

Back

The Sun.

Front

Which organisms provide energy to an owl in a food web?

Back

Mouse and rabbit.

Front

What are primary consumers in a food web?

Back

Organisms that eat producers (plants) and are the first level of consumers.

Front

How much energy is typically transferred to the next trophic level in an ecosystem?

Back

10%.

Front

What do the arrows in a food chain or web represent?

Back

The direction in which energy is flowing between organisms.

Front

Define 'producers' in an ecosystem.

Back

Organisms that produce their own food, typically through photosynthesis, like plants.

Front

What role do 'consumers' play in an ecosystem?

Back

Consumers are organisms that eat other organisms for energy.

Front

What is a food chain?

Back

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

Front

What is a food web?

Back

A complex network of interconnected food chains in an ecosystem.

Front

What is a trophic level?

Back

Each step in a food chain or food web, representing a different level of energy transfer.