Interactions Among Living Things Notes
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23 terms
Terms | Definitions |
|---|---|
 What do species of organisms develop over time to help them suceed in an environment? | specialized adaptations and behaviors |
| These are the major types of interactions among organisms | competition, predation and symbiosis |
| What are the types of symbiotic relationships? | mutualism, commensalism, parasitism |
| What is part of an organism's niche? | type of food eaten, how it obtains food, which other species use the organism as food, how it reproduces, physical conditions to survive, how it interacts with other organisms |
| Specializing by organisms can reduce what? | competition |
| If a prey population decreases, what will also probably happen? | population of the predator will decrease |
| How do organism's adaptations help it to survive? | variety of adaptations that are suited to specific living conditions |
| Individual members of a population compete with one another for | basic resources, mates, and territory |
| A population may ensure that labor and resources are adequately shared by establishing what? | social order |
| Members of a population may ensure that there is adequate habitat to provide for basic resources by establishing what? | territory |
| A population can be influenced by | individual behaviors and group behaviors |
| Populations interact with other populations by | exhibiting a variety of behaviors that aid in the survival of the population |
| Organisms or populations that rely on each other for basic needs form | interdependent communities |
| Define interdependent | mutually dependent on one another |
| Energy resources of a community are shared through the interactions of | producers, consumers and decomposers |
| The interaction between a consumer that hunts another consumer for food is | predator-prey relationship |
| This exists between two or more organisms of different species when they live and work together | symbiotic relationship |
| Each organism fills a specific role in its community | niche |
| Changes that affect organisms over time may be | daily, seasonal or long-term |
| Plants exhibit phototropism in this manner | respond to light by growing toward or away from it |
| Animals exhibit hibernation in this manner | respond to cold conditions with a period of lowered metabolism |
| Organisms exhibit dormancy in this manner | respond to adverse conditions with a period of lowered or suspended metabolism |
| Large-scale changes, such as eutrophication and catastrophic events, may affect | entire communities and ecosystems |
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