Nourishment and Energy Sources in Organisms

What do heterotrophs consume to get their nourishment?

• Inorganic substances

• Organic matter

• Sunlight

• Water and carbon dioxide

How do autotrophs produce their own food?

• By consuming other organisms

• By breaking down organic matter

• By converting inorganic substances into organic substances

• By absorbing nutrients directly from the air

Carnivorous plants, like the Venus flytrap, are able to digest insects. What is their primary method of obtaining energy?

• Digesting insects for glucose

• Absorbing nutrients from the soil

• Producing their own food through photosynthesis

• Consuming other plants

Organisms that are classified as chemoautotrophs obtain their energy from what source?

• Sunlight

• Organic compounds

• Chemical reactions

• Other organisms