detritivores		Shows how living things transfer energy by eating or being eaten.
ecology		Inherited traits that increase an organism's chance of survival.
heterotroph		Organism that uses light to make food through photosynthesis.
theory		A collection of different populations
adaptation		Rely on producers or heterotrophs for their food.
abiotic		A group of individuals of the same species that live in the same area
niche		The role of the organism in the ecosystem.
foodchain		Nonliving, physical things of interaction.
population		Organism that relies on the energy stored in chemical compounds to make their food.
community		The part of the planet where all life exists
biosphere		A group of ecosystems with the same climate.
phototroph		A well-suported, testable explanation of events that occur in the natural world.
biotic		Greatly reduced structures that no longer serve any role.
homologousstructures		Living things of interaction.
biome		A group of similar organisms that breed and produce fertile offspring
ecosystem		Feed on the remains of other organisms.
carnivore		Nature that selects those variations found useful for organisms in an environment.
habitat		Rely on other organisms for their food.
naturalselection		All the organisms in a specific place together with their biotic and abiotic factors.
omnivores		Diagrams that show the relative amounts of energy or matter at each trophic leve.
fossilrecord		Get energy from eating only plants.
autotroph		Develop from the same embryonic tissues that provide evidence of modifications from common ancestors.
herbivore		Break down organic matter.
artificialselection		change over time
decomposer		Each step in a food chain or food web.
species		Links together all the food chains in an ecosystem.
chemotroph		The scientific study of the interactions of organisms and their environment.
ecologicalpyramid		Get energy from eating only animals.
producer		Process in which humans breed organisms with desired variations of specific traits.
consumer		Organisms that make their own food.
vestigialorgans		The dependence of biotic and abiotic factors in an environement.
foodweb		Get energy from eating both plants and animals.
interdependence		Organisms that use the energy in sunlight or chemicals to make their own food.
trophiclevel		An area where an organism lives.
evolution		Comparing fossils from older and younger rock layers.