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| an experiment in which only one variable changes |
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| the deliberatly manipulated variable |
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| the varisble that change in response to the independant variable |
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| and experiment that is exposed to the same conditions as the experimental group except that the independat variable is not changed |
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| an idea that ties together many different scientific hypothises |
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| a particular point of view that is personal rather than scientific |
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| the condition of having a stable internal enviroment even when external conditions change dramatically |
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| means "living planet' it is what all living things are a part of |
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| atoms with the same elements that have different numbers of neurons |
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| a substance created from the chemical combinations of two or more elements in definite proportions |
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| a slight attraction beetween nearby oppositly charged molocules |
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| weak acids or bases that react to strong acids or bases to prevent sharp spikes in pH |
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| any compound that creates h-plus ions in a solution |
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Definition
| the attraction beetween a partially positivlly charged hydrogen atom and a partially charged negative atom |
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| the small particalles used in creatin macromollocules |
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| a group of monomers joined together |
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| the elements or compounds that enter a chemical reaction |
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| the reactants of enzyme-cataliyzed reactions |
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| any living part of the enviroment that an organism may interact with |
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| any not-living part of the enviroment (sunlight, heat, rain, etc.) |
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Definition
| onganisms that convert sunlight or heat into viable energy for the organism |
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| organisms that only eat bacteria, fungi, mushrooms, etc. which are called decomposers |
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| when the elements pass beetween organisms and parts of the biosphere in closed loops |
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Definition
| the process of converting nitrogen gas into amonia |
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Definition
| the process of converting nitrates into nitrogen gas |
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| enviromental variations over small distances that are all in the same climate |
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| any relationship in which two species live closly together |
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| a relationship beetween species in which both species benefit |
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| a series of more or less predictable changes in an enviroment |
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| trees at the very northern edge of the temperate zone |
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| a plant that sheds leaves during a particular season |
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| trees that produce seed bearing cones |
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| a material formedof decaying leavesand other organic matter |
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| the sunlit region under the suface of water |
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| organisms that live in or on rocks at the bottom of bodies of water |
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| the period after exponential growth in which population growth slows then stops |
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| a factor that controls the growthof a population |
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| the scientific study of the human population |
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| the practice of clearing large streaches of land for the sole purpose of planting a single highly productive crop year after year |
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Definition
| using resourses an enviromentally consious way |
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Definition
| when polutants collect in animals body tisues and are not expelled |
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Definition
| when human deleopment splits habitats to peices |
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Definition
| a place where a significant number of species and habitats are in danger of extinction |
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Definition
| the farming of aquatic animals |
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Definition
| where lipid components of the cell membrane are assembled |
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Definition
| modifies, sorts, and packages protiens and other materials from the E.R. for storage in the cell or realese outside the cell |
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| areas of the cell membrane that allow water to pass through them |
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Definition
| the net movement of water into or out of a cell |
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| the part of a molocule that allows signaling molocules to bind |
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| sack-like photo-sinthetic membranes |
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Definition
| the fluid portion of chloraplast outside the thylaktoid |
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Definition
| accepts and holds 2 high energy elctrons and 1 hydrogen ion (H+) |
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Definition
| when plant use the energy stored in ATP and NADPH to create stable high energy carbohydrate compounds that can be stored for a long time |
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Definition
| accepts and carries 4 high energy electrons until they can be passed on to another molocule |
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Definition
| when pyruvic acid is broken down into carbon dioxide |
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Definition
| the process of producing atp without oxcygen |
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Definition
| simulate the growth and devision of cells |
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Definition
| the process of programmed cell death |
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Definition
| the seperation of alleles |
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Definition
| the process for which the genes for different traits can seperate indepentantly during the formation of gametes |
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Definition
| a trait that is controlled by two or more alleles |
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Definition
| the product of crossing over |
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Definition
| when two chromosomes touch and swap genetic information they then seperate each carrying a small portion of the other the new structure is called a tetrad |
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Definition
| the process of creating 4 (N) gamete cellsare produce from one (2N) diploid cell |
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Definition
| the process of peranently changing one thing into another |
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Definition
| a kind of virus that infects bacteria |
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Definition
| the near perfect fit beetween A-T and G-C |
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Definition
| an enzyme that joins individual nucleotides to produce a new strand of DNA |
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Definition
| the way DNA, RNA and protiens are involved in putting gentetic information into action in living cells |
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Definition
| the 44 non sex-linked chromosomes in the human body |
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