Producers and

Consumers

A. Primary Producers

Autotrophs: produce their own food and food for others using chemicals or light

1. Photoautotroph (light)

Do photosynthesis:Use light energy, water, and

carbon dioxideMake Carbohydrates (sugar)

and oxygenPhotosynthetic producers:Land: PLANTSWater: ALGAESalt marshes: CYANOBACTERIA

2. Chemoautotrophs

Do chemosynthesisUse energy in chemicals to

create carbohydrates

Ex. Hydrothermal vents

B. Consumers

Heterotrophs (consumers): eat other organisms to obtain energy

1. Carnivores

kill and eat other animals

2. Scavenger

consume the carcasses of dead animals

3. Decomposer

Eat dead, decaying material

Create detritus small pieces of dead and

decaying plant and animal remains

4. Detritivore

Feeds on detritus (small particles of dead stuff)

5. Herbivores

eating plant leaves, roots, seeds, or fruits

6. Omnivore

Eats a variety of different foodsPlantsAnimals