Question | Answer |
biosphere | the part of Earth that supports life, including the top portion of earth's crust, all the waters that cover Earth's surface, and the surrounding atmosphere. |
carrying capacity | the largest number of individuals of one species that an ecosystem can support over time. |
commensalism | a symbiotic relationship in which one organism benefits and the other is not affected. |
community | all the animals and olants living in an area. |
consumer | organisms that cannot make their own energy-rich molecules. |
ecology | the study of ineractions that occur among organisms and their enviroment. |
ecosystem | all the organisms living in an area and the nonliving reatures of their environment. |
habitat | the place in which an organism lives. |
limiting factor | anything that restricts the number of individuals in a population. |
mutualism | a symbiotic relationship in which both species benefit. |
niche | how an organism survives, including its habitat, how it obtains food and shelter, and how it avoids danger. |
parasitism | a symbiotic relationship in which one organism benefits while the other is harmed |
population | all the organism in an ecosystem that belong to the same species |
producer | organisms that use an outside energy source, such as the Sun, to make energy-rich molecules |
symbiosis | any close relationship between species |
predator | consumers that capture and eat other consumers |
prey | a consumer captured and eaten by another consumer |
competition | two or more organisms seek the same resource at the same time |
chemosynthesis | the production of energy-rich molecules from chemicals |
food web | shows all the possible feeding relationships among the organisms in a community |
energy pyramid | shows the amount of energy available at each feeding level in an ecosystem |
food chain | a simple way of showing how matter and evergy pass from one oranism to another |