Energy Flow in Ecosystems

Front

The major energy source on our planet is the _________________

Back

sun

Front

Ecological Efficiency is defined as:

Back

The rate at which energy is transferred from one trophic level to the next.

Front

Define Gross Primary Productivity (GPP).

Back

The total amount of carbon dioxide that is fixed by plants in photosynthesis.

Front

Define Net Primary Productivity (NPP).

Back

The energy available to consumers after producers have used some for respiration.

Front

What are the Biotic factors in this image?

Back

Elephants, plants, trees.

Front

What is the role of producers in an ecosystem?

Back

Producers convert solar energy into chemical energy through photosynthesis.

Front

What is a trophic level?

Back

A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients.

Front

Define the term 'food chain'.

Back

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

Front

What is the difference between GPP and NPP?

Back

GPP is the total energy captured by photosynthesis, while NPP is the energy available to consumers after respiration losses.

Front

What are decomposers and their role in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.