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Unit 9 StudyStack
Interactions with Living Organisms
| Question | Answer |
|---|---|
| Cooperation | nvolves organisms working together for mutual or collective benefit, increasing reproductive success and survival beyond what individuals can achieve alone. Example - Wolves hunting in a pack. |
| Competition | The struggle between two organisms for the same resources (food, water, shelter, light, territory, etc.) within an environment. Example - two bears fighting over fish in a river. |
| Symbiosis | Any relationship between two or more organisms in which the organisms somehow affect each other. Three types - parasitism, commensalism, mutualism. |
| Mutualism | A symbiotic relationship between organisms in which both organisms are benefited, and could even be dependent on one another. WIN WIN |
| Parasitism | A symbiotic relationship between organisms in which one organism benefits (the parasite) and the other is harmed (the host). WIN LOSE |
| Commensalism | A symbiotic relationship between organisms of different species in which one organism is benefited and the other is unaffected. WIN MEH |
| Predator | An animal that naturally preys on other animals, The hunter Example - Tiger hunting a lion. The tiger is the predator |
| Prey | Animals that are killed and eaten by other animals. The hunted. Example - Lion hunting a zebra. The zebra would be the prey |
| Niche | The ecological role of an organism in a community. An example - the job of plants is to feed the primary consumers. |
| Interspecific | Competition among members of different species is called interspecific competition. An example - Cheetahs and lions in Africa compete for the same prey (wildebeest, gazelles), often leading to lions stealing kills or killing cheetahs. |
| Intraspecific | Competition among members of the same species is called intraspecific competition. Example -Songbirds, such as robins, defend territories against others of their species to secure nesting sites |
| Biotic | Living factors in the environment - plants, animals, fungi, protists, bacteria |
| Abiotic | Nonliving factors in the environment. The abiotic factors of the environment include light, temperature, soil, climate, and atmospheric gases |
| Habitat | The natural environment of a plant or animal. |
| Species | Organisms that can reproduce with each other |
| Autotrophic | An organism capable of synthesizing its own food from inorganic substances using light or chemical energy. Green plants, algae, and some bacteria are autotrophs. |
| Heterotrophic | An animal that relies on eating others for their food. No photosynthesis here! |
| Consumer | Same as heterotrophic -An organism that consumes another organism as food for energy. Primary consumer: an organism that consumes producers (usually plants). Secondary consumer: an organism that consumes primary consumers. |
| Population Interactions | Population interactions are the different ways that living things (plants, animals, and germs) in the same area affect each other's survival. |
| The BEST MIDDLE SCHOOL EVER IS - | TABB MIDDLE SCHOOL!!! One more unit to go! KEEP UP THE GREAT WORK!!! |
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