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Definition
| non-living things in an ecosystem |
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Definition
| any form of precipitation, that contains sulfur or nitric acid(nitrogen cycle) |
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| Age Structure/Trend Diagram |
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Definition
| diagrams that show how a population is distributed |
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Definition
| organisms that capture energy from sunlight to make their own food(producers) |
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Definition
| he number and variety of organisms found within a specified geographic region |
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Definition
| graphical representation to show the relative amounts of biomass at each trophic level and biomass is largest at the base, and decreasing in amount as it gets higher. |
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Definition
| group of ecosystems that have the same climate and similar dominant communities. |
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Definition
| portion of earth that supports life |
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Definition
| living things in an ecosystem |
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Term
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Definition
| carbon is neccesary for life, anything organic contains carbon...steps- photosynthesis->stored in plants->stored in animals->respiration->decomposers->fossil fuels->combustion->atmosphere(carbon dioxide reservoir) |
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Definition
| the greatest # of individuals in a population the environment can hold at that point in time. |
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Term
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Definition
| populations of plants or animals remain stable and exist in balance with each other and their environment |
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Definition
| symbiotic relationship where one organism benefits and the other is neither benefits or is harmed |
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Definition
| a collection of interacting populations |
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Definition
| deals with the effects of humans on the environment and with the conservation of biological diversity |
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Definition
| organisms who can't make their own food, as a result they feed on other organisms(heterotroph) |
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Definition
| organisms that help breakdown organic material |
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Term
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Definition
| the type of organisms in an environment and how their population grows and decline |
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Term
| Density-dependent factors |
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Definition
| factors that rely on the # of organisms in a given area |
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Term
| Density-Independent factors |
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Definition
| factors not determined by population density. |
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Term
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Definition
| Sand dunes,no soil and less than 25cm of rain annually, hot climate, plants spread roots to take in more water. |
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Term
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Definition
| the study of the interactions between organisms, their environment,and other organisms. |
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Term
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Definition
| interactions among the pop. in a community and the communities physical surroundings |
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Definition
| new species coming into a pop. |
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Definition
| a species whose numbers are so small that the species is at risk of extinction. |
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Term
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Definition
| organisms feed->energy becomes available to the consumer, 10% is passed on,the larger the food chain the less energy at the top, measured in joules(j) |
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Term
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Definition
| removal of water from land, heat from the sun evaporates water from oceans,lakes etc. |
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Definition
| plant or animal species introduced into an area where they do not occur naturally |
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Definition
| growth that increases at a constant % each time |
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Definition
| A breed where it is no longer possible to recreate the breed population |
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Term
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Definition
| sequence of organisms, each of which uses the next, lower member of the sequence as a food source. |
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Definition
| The feeding relationships by which energy and nutrients are transferred from one species to another. |
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Definition
| An increase in the near surface temperature of the Earth |
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Term
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Definition
| moist and deep, soft brezzes and 2 main seasons, warm and rainy climate, plants dont need much water7animals dig holes underground when it gets hot |
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Definition
| The warming of the Earth's atmosphere attributed to a buildup of carbon dioxide or other gases |
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Term
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Definition
| portion of the water beneath the surface of the earth |
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Definition
| place where organisms live |
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Term
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Definition
| organisms who cant make their own food , so they feed on other organisms(consumer) |
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Term
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Definition
| movement of organisms to a specific area |
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Definition
| shows a change in size [+/-] |
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Term
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Definition
| a condition that may have a negative influence on a populations ability to thrive. |
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Definition
| symbiotic relationships in which both organisms benefit |
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Term
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Definition
| an organisms role in its environment |
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Term
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Definition
| protective layer in the atmosphere,that absorbs some of the sun's uv rays |
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