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| nonliving parts of an organism's environment;temperature,moisture,lightand soil are examples. |
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| portion of earth that supports life |
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| all the living organisms that inhabitat an environment |
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| symbiotic relationship in which one species benefits and the other species is neither harmed nor benefited |
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| collection of several interacting populations that inhabitat a common environment |
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| scientific study of interactions among organisms and their environments |
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| interactions among populations in a community;the community's physical surroundings ,or abiotic factors |
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| place where an organism lives out its life |
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| a symbiotic relationship in which both species benefit |
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| role and position a species has in its environment |
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| symbiotic realtionship in which one organism benefits at the expense of other species |
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| group of organisms of one species that interbreed and live in the same place at the same time |
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| permanent ,close association between two or more organisms of different species |
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| organisms that use energy from the sun or energy from the sun or energy stored in chemical compounds to maufactre their own nutrients |
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| organisms,such as fungi,that break down and absorb nutrients from dead organisms |
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| simple model that shows how matter and energy move through an ecosystem |
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| model that expresses all the possible feeding relationships at each trophic level in a community |
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| organisms that cannot cannot make their own food and must feed on other organisms for energy and nutrients |
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| animals that feed on animals that have died |
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| organism in a food chain that represents a feeding step in the passage of enrgy and materials through an ecosystem |
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| a stable,mature community that undergoes little or no change in species over time |
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| any biotic or abiotic facor that restricts the existence ,numbers,reproduction,or distribution of organisms |
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| coloniztion of new land that is exposed by avalanches ,volcanoes,or glaciers by pioneer organisms |
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| sequence of community changes that take place after a communtiy is disrupted by natural disasters or human actions |
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| orderly,natural changes , and species replacements that take place in ecosystem communities over time |
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| portion of the marine biome that is too deep for sunlight to penetrate |
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| group of ecosystems with the same climax communities |
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| arid region with sparse to almost nonexistent plant life |
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| coastal body of water,partially surrounded by land ,in which freshwater and salt water mix |
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| biome composed of large communties covered with grasses and similar small plants |
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| portion of the shoreline that lies between high tide and low tide lines |
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| layer of permanently frozen ground that lies underneath the topsoil of the tundra. |
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| portion of the marine biome that is shallow enough for sunlight to penetrate |
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| small organisms that live in the waters of the photic zone |
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| biome just south of the tundra aka northern coniferous forest |
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| biome composed of forests of broad leaved hardwood trees that lose their foilage annually |
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| biome near the equator with warm temperatures,wet weather and lush plant growth |
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| biome that surrounds the north and south poles |
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| number of organism of one species that an environment can support |
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| factor such as disease,parasites ,or food supply that has an increasing effect as populations increase |
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| density-independent factor |
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| factor such as temperate ,storms ,floods,drought,or habitat disruption that affects all populations |
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| population growth pattern where a population grows faster as it increases in size |
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| proportions of a population that are at diffrent age levels |
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| study of popu;ation chracteristics such as growth rate,age structure and geographic distribution |
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| movement of individuals from a population |
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| movement of individuals into a population |
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| A membrane bound structure that is the basic unit of life |
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| The lipid bilayer that forms the outer boundary of the cell |
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| This says that all living things are made of cells, that cells are the basic unit of structure and function and that cells only come from other cells. |
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| A rigid structure that surrounds the cells of plants and most bacteria |
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| A plastid containing chlorophyll, the site of photosynthesis |
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| The region of the cell between the cell membrane and the nucleus |
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| A network of long protein strands in the cytosol that helps support the cell |
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| A cell that contains a nucleus and membrane bound organelles |
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| A system of membranes that modifies and packages proteins for export by the cell |
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| An organelle containing digestive enzymes |
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| Powerhouse of the cell, organelle that is the site of ATP (energy) production |
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| A double membrane that surrounds the nucleus in the cell |
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| The organelle where ribosomes are made, synthesized and partially assembled, located in the nucleus |
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| The organelle that contains the DNA and controls the processes of the cell |
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| One of several bodies with a specialized function that is suspended in the cytosol of the cell |
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| several types of body tissues that together form a function |
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| A group of organs that interact to perform a set of related tasks |
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| A unicellular organism that lacks a nucleus and membrane bound organelles |
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| An organelle that functions in the synthesis of proteins |
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| a group of similar cells that carry out a similar function |
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| A fluid filled organelle that stores enzymes or water |
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| A membrane bound sac that contains materials involved in transport of the cell. |
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