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| potential difference measured by an voltmeter |
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| resistance equals voltage divided by currents |
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| a electric current that conducts electricity under certainconditions |
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| A device used to measure voltage |
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| An object that is not magnetic |
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| A object that has magnetite |
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| The region around a magic where the magnetic force is exerted |
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| A build up of charges on an object |
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| Charges that are negative |
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| A magnet that has a positive surronding |
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| The process by which plants and some other organisms capture the energy in sunlight and use it to make food. |
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| The process by which cells break down simple food molecules to release the energy they contain. |
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| The process by which cells break down molecules to release energy without using oxygen. |
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| The stage of the cell cycle during which the cell’s nucleus divides into two new nuclei and one copy of the DNA is distributed into each daughter cell |
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| The final stage of the cell cycle, in which the cell‘s cytoplasm divides, distributing the organelles into each of the two new cells. |
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| The stage of the cell cycle that takes place before cell division occurs. |
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| The regular sequence of growth and division that cells undergo. |
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| The process by which molecules move from an area of higher concentration to an area of lower concentration. |
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| The movement of materials through a cell membrane without using energy. |
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| A protein that speeds up chemical reactions in the body. |
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| Two or more elements that are chemically combined. |
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| A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce. |
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| Any difference between individuals of the same species. |
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| The preserved remains or traces of an organism that lived in the past. |
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| A technique used to determine the actual age of a fossil on the basis of the amount of a radioactive element it contains. |
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| Term used to indicate a species that does not have any living members. |
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| The number of different species in an area. |
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| Species that are carried to a new location by people |
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| The specific environment in which an animal lives. |
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| The largest population that an area can support. |
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| The theory that evolution occurs slowly but steadily. |
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| The theory that species evolve during short periods of rapid change |
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| Body parts that are structurally similar in related species; provide evidence that the structures were inherited from a common ancestor. |
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| A diagram that shows how scientists think different groups of organisms are related |
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| The gradual change in a species over time |
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| A trait that helps an organism survive and reproduce. |
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| The mating of animals in zoos or wildlife preserves. |
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| The role of an organism in its habitat, or how it makes its living. |
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| The set of information that controls a trait; a segment of DNA on a chromosome that codes for a specific trait |
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| A characteristic that an organism can pass on to its offspring through its genes |
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| A number that describes how likely it is that an event will occur. |
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| A chart that shows all the possible combinations of alleles that can result from a genetic cross |
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| An allele whose trait always shows up in the organism when the allele is present |
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| An organism’s genetic makeup, or allele combinations. |
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| The different forms of a gene |
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| Having two identical alleles for a trait |
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| The process of using one or more of your senses to gather information. |
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| An observation that deals with a number or amount |
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| The process of making an inference, an interpretation based on observations and prior knowledge. |
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| The process of grouping together items that are alike in some way. |
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| A resource that is either always available or is naturally replaced in a relatively short time. |
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| The process of cutting down only some trees in an area. |
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| The practice of raising fish and other water-dwelling organisms for food. |
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| An area with a large population of valuable ocean organisms |
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| A close relationship between two species that benefits at least one of the species. |
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