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?
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?
Members of a population may ensure that there is adequate habitat to provide for basic resources by establishing what?
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
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
This exists between two or more organisms of different species when they live and work together
Each organism fills a specific role in its community
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