Terms for the quiz.
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| 87990541 | aposematic coloration | the bright coloration of animals with effective physical or chemical defenses that acts as a warning to predators. | |
| 87990542 | Batesian mimicry | a type of mimicry in which a harmless species looks like a species that is poisonous or otherwise harmful to predators. | |
| 87990543 | biogeography | the study of the past and present distribution of species. | |
| 87990544 | biomass | the total mass of organic matter comprising a group of organisms in a particular habit. | |
| 87990545 | commensalism | a symbiotic relationship in which one organism benefits but the other is neither helped nor harmed. | |
| 87990546 | community | all the organisms that inhabit a particular area; an assemblage of population of different species living close enough together for potential interaction. | |
| 87990547 | community ecology | the study of how interactions between species affect community structure and organization | |
| 87990548 | competitive exclusion | the concept that when populations of two similar species compete for the same limited resources, one population will use the resources more efficiently. | |
| 87990549 | cryptic coloration (CT) | camouflage that makes a potential prey difficult to spot against its background. | |
| 87990550 | disturbance | a natural or human-caused event that changes a biological community and usually removes organisms from it. Disturbances, such as fires and storms, play a pivotal role in structuring many communities. | |
| 87990551 | dominant species | a species with substantially higher abundance or biomass that other species in a community. dominant species exert a powerful control over the occurrence and distribution of other species. | |
| 87990552 | ecological niche | the sum of species' use of the biotic and abiotic resources in its environment. | |
| 87990553 | ecological succession | transition in the species composition of a community following a disturbance; the establishment of a community an area virtually barren of life. | |
| 87990554 | ectoparasite | a parasite that feeds on the external surface of a host. | |
| 87990555 | endoparasite | a parasite that lives within a host. | |
| 87990556 | evapotranspiration | the total evaporation of water from an ecosystem, including evaporation from soil and the outside of plants, as well as the transpiration of water from within plants through stomata. | |
| 87990557 | food chain | the pathway along which food energy is transferred from trophic level to trophic level, beginning with producers. | |
| 87990558 | food web | the interconnected feeding relationships in an ecosystem. | |
| 87990559 | herbivory | an interaction in which an organism eats parts of a plant or alga. | |
| 87990560 | host | the larger participant in a symbiotic relationship, serving as home and food source for the smaller symbiont. interspecific competition: competition for resources between individuals of two or more species when resources are in short supply. | |
| 87990561 | invasive species | a species, often introduced by humans, that takes hold outside of its native range. | |
| 87990562 | keystone species | a species that is not necessarily abundant in a community yet exerts strong control on community structure by the nature of its ecological role or niche. | |
| 87990563 | Müllerian mimicry | a mutual mimicry by two unpalatable species. | |
| 87990564 | parasite | an organism that feeds on the cell contents, tissues, or body fluids of another species (the host) while in or on the host organism. Parasites harm but usually do not kill their host. | |
| 87990565 | parasitism | a symbiotic relationship in which one organism, the parasite, benefits at the expense of another, the host, by living either within or on the host. | |
| 87990566 | pathogen | an organism or virus the causes disease. | |
| 87990567 | predation | an interaction between species in which one species, the predator, eats the other, the prey. | |
| 87990568 | primary succession | a type of ecological succession that occurs in an area where there were originally no organisms present and where soil has not yet formed. | |
| 87990569 | resource partitioning | the division of environmental resources by coexisting species such that the niche of each species differs by one or more significant factors from the niches of all coexisting species. | |
| 87990570 | secondary succession | a type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil or substrate intact. | |
| 87990571 | species diversity | the number and relative abundance of species in a biological community | |
| 87990572 | species richness | the number of species in a biological community. | |
| 87990573 | symbiosis | an ecological relationship between organisms of two different species that live together in direct and intimate contact. | |
| 87990574 | trophic structure | the different feeding relationships in an ecosystem, which determine the route of energy flow and the pattern of chemical cycling. | |
| 87990575 | vector | an organism that transmits pathogens from one host to another | |
| 87990576 | zoonotic pathogen | a disease-causing agent that is transmitted to humans from other animals. |
