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Ecology

TEKS 13B Ecology and flow of energy

TermDefinition
Ecology The study of interactions of living organisms with each other and their environment.
Habitat Area and resources used by a particular species with their abiotic environment.
Flow energy How energy flows in a ecosystem through organisms.
Herbivores Animals that only eat vegetation (plants).
Carnivores Animals that only eat other animals (meat).
Omnivores Animals that eat plants and meat.
Detritivores Consumers that eat decaying matter and animal feces (detritus) and help recycle nutrients within ecosystems.
Food chain Food chain shows the feeding relationships for a single chain of producers and consumers.
Food web Model that shows a complex network of feeding relationships and the related flow of energy.
Biotic Living organisms in a habitat.
Abiotic Non living things. All the physical and chemical components of a habitat.
Autotrophs Photosynthetic organisms are considered autotrophs because they make their own food.
Heterotrophs Heterotrophic organisms, like animals and fungi, must ingest or absorb nutrients from the environment. Because heterotrophs consume food energy, we call them consumers.
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