Ecology Terms 19-33

the disappearance of a species when the last of its members dies

• Extinction
• Autotroph /producer
• Herbivore
• Carrying capacity

organism that captures energy from sunlight or inorganic substances to produce its own food; provides the foundation of the food supply for other organisms

• Autotroph/producer
• Heterotroph /consumer
• Carnivore
• Herbivore

organism that cannot make its own food and gets its nutrients and energy requirements by feeding on other organisms

• Autotroph /producer
• Heterotroph /consumer
• Food chain
• Food web

heterotroph that eats only plants

• Consumer
• Omnivore
• Carnivore
• Herbivore

heterotroph that preys on other heterotrophs (eats animals)

• Consumer
• Omnivore
• Carnivore
• Herbivore

heterotroph that consumes both plants and animals

• Consumer
• Omnivore
• Carnivore
• Herbivore

heterotroph that decomposes organic material and is mobile

• Decomposer
• Detritivore
• Herbivore
• Carnivore

heterotroph that decomposes organic material and is NOT mobile

• Decomposer
• Detritivore
• Heterotroph/consumer
• Autotroph/producer

simplified model that shows a single path for energy flow through an ecosystem

• Trophic level
• Food web
• Food chain
• Natural selection

model that shows many interconnected food chains and pathways in which energy and matter flow through an ecosystem

• Trophic level
• Food web
• Food chain
• Natural selection