Biology EOC Review: Ecosystems

Front

What percentage of the Biology EOC in North Carolina is focused on ecosystems?

Back

18-22%

Front

Which process do plants use to take in carbon dioxide?

Back

Photosynthesis

Front

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

Back

The Sun

Front

Approximately how much energy is lost when moving up each trophic level?

Back

90%

Front

What is the role of nitrogen-fixing bacteria in the nitrogen cycle?

Back

They convert nitrogen gas into usable forms for plants.

Front

Which of the following is an example of a heterotrophic organism? Humans, Algae, Mosses, Ferns

Back

Humans

Front

What is a key difference between autotrophs and heterotrophs?

Back

Autotrophs can form their own food through photosynthesis, while heterotrophs cannot.

Front

What is the primary reason for habitat destruction leading to species extinction?

Back

Human population growth

Front

What is the main cause of global warming?

Back

Burning of fossil fuels

Front

How do CFCs affect the ozone layer?

Back

They create holes in it.