click below
click below
Normal Size Small Size show me how
Pop & Eco 5
Pop & Eco 5 (Energy Pyramids)
Term | Definition |
---|---|
Energy Pyramid | a diagram that shows the amount of energy that moves from one feeding level to another in a food web |
Trophic Levels | The levels of an energy pyramid through which energy flows from producers to primary consumers, secondary consumers and so on. |
Autotroph | An organism that makes its own food (a producer) |
Omnivore | organism that obtains energy by eating both plants and animals |
Detrivore | a scavenger, such as an earthworm, that feeds on dead plant and animal matter |
Biomass | organic matter that can be a source of energy in an ecosystem. |
Photosynthesis | process by which plants use the sun's energy to convert water and carbon dioxide into sugars |
Reactants of Photosynthesis | CO2 & H2O |
Products of Photosynthesis | C6H12O6 (glucose) & O2 (oxygen) |
Calories | Units of heat that measure the energy used by the body and the energy that foods supply to the body |
Items that lack calories | Water, sleep, vitamins, minerals |
Items that have calories | Fats, Carbohydrates, Proteins |
Uses for food | Energy, nutrients, building body tissue. |
10% | The amount of biomass energy that transfers up to the next trophic level in an ecosystem. |
90% | The amount of biomass energy lost beween trophic levels in an ecosystem. |
Decomposers | Organisms that break down wastes and dead organisms and return raw materials to the environment |
Herbivores | An organism that eats only plants. |
Carnivores | Organisms that eat other animals for energy |
Detritus | Dead organic matter or waste products |
Heterotrophs | organisms that cannot make their own food |