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General Biology
Chapter 3 - The Biosphere
| Question | Answer |
|---|---|
| Consists of all the life on Earth | Biosphere |
| The study of organisms interacting with other organisms and their physical surroundings | Ecology |
| A group of similar organisms that can breed and produce fertile offspring | Species |
| A group of individuals that belong to the same species | population |
| A group of different populations living together in a defined area | community |
| allthe organisms that live in their physical environment | Ecosystem |
| a group of ecosystems that share similar climates and organisms | biome |
| liveing or biological parts of an ecosystme | Bioltic Factors |
| the non-living or physical parts of an ecosystem | Abiotic Factors |
| first producers of energy-rich compounds that are later used by other organisms | Primary Producers |
| organisms that use solar or chemical energy to produce food | Autotrophs |
| process used to convert the sun's energy into carbohydrates (food) | photosynthesis |
| process used to obtain energy from chemical compounds (typically bacteria) | chemosynthesis |
| Organisms that rely on other organism for food | Heterotrophs (Consumers) |
| eat only plants | Herbivore |
| eat only meat | Carnivore |
| eat both plants and animals | Omnivore |
| animals that consume the carcasses of already killed animals | scavenger |
| organism sucn as bacteria and fungi that chemically breakdown organic (once living) matter into smaller pieces called detritus | decomposers |
| organisms that feel on detritus such earthworms, snails, mites, and crabs | detritivores |
| A series of stops in which organisms tranfer energy by eating and being eaten | food chain |
| tiny aquatic plants, | Phytoplankton |
| Tiny aquatic animals | Zooplankton |
| network of interconnected food chains | Food Web |
| accumlation or increase in concentration of compounds in a food chain | Bioaccumulation/bioconcentration |
| each step or level of a food chain | Trophic levels p.66 -67 |
| shows the relative amount of energy or matter contianed within each trophic level for a food chain | Ecological Pyramids |
| Shows the relative amount of energy available to each trophic level | Pyramid of Energy |
| shows the relative amount of living tissue within a given trophic level | Pyramid of Biomass |
| shows the relative numbers or individual organisms at each trophic level. | Pyramid of Numbers |
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bearsont
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