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linnea's biosphere
The biosphere
| Term | Definition |
|---|---|
| Ecology | the scientific study of interactions among organisms and between organisms and their environment or natural surroundings |
| Biosphere | contains the combined portions of the planet in which all life exists |
| Species | A group of organisms so similar to one and other that they can breed and produce fertile offspring |
| Population | a group of individuals that belong to the same species and live in the same area |
| Communities | assemblages of different populations that live together in a defined area |
| Ecosystem | a collection of all organisms that live in a particular place |
| Biome | a group of ecosystems that have the same climate and similar dominant communities |
| Autotrophs | plants, bacteria, or algae that can capture energy from sunlight or chemicals and use that energy to produce food |
| Producers | also called an autotroph |
| Photosynthesis | use light to power chemical reactions that convert carbon dioxide and water into oxygen |
| Chemosynthisis | used when organisms use chemicals to produce carbohydrates |
| Heterotrophs | organisms that rely on other organisms for their energy and food supply. |
| Consumers | also called a heterotroph |
| Herbivores | obtain energy by eating only plants |
| Carnivores | eat only meat |
| Omnivores | eat both plants and animals |
| Detritivores | eat animal remains and other dead matter |
| Decomposers | breaks down organic matter |
| Food Chain | a series of steps in which organisms transfer energy by eating and being eaten. |
| Food Web | links all food chains in an ecosystem together. |
| Ecological Pyramid | diagram that shows the relative amount of energy or matter contained within each trophic level of the food chain or food web |
| Biomass | the total amount of living tissue within a given trophic level |
| Biogeochemical Cycles | connect biological, geological, and chemical aspects of the biosphere. |
| Evaporation | the process by which water changes from liquid form to an atmospheric gas |
| Transpiration | the process by which water can enter the atmosphere by evaporating from leaves or plants |
| Nutrients | the body's chemical building blocks |
| Nitrogen Fixation | converting of nitrogen into ammonia |
| Denitrification | the process that releases nitrogen into the atmosphere once again |
| Primary Productivity | rate at which organic matter is created by producers |
| Limiting Nutrient | when an ecosystem is limited by a single nutrient that is scarce or cycles very slowly. |
| Algal Bloom | an immediate increase in the amount of algae and other producers |
Created by:
lhurtado
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