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| first step to scientific method / taking in information using five senses |
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| second step in scientific method / an educated guess or testable explanation |
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| a factor that does not change, used for comparison |
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| part of the experiment that contains the independent variable |
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| something that is deliberately changed during an experiment |
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| the results of an experiment |
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| time tested concept that holds true |
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| not based on direct observations, but prior knowledge |
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| different cells do different jobs, many celled organism |
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| requires two individuals, exchange of genetic material, and offspring is unique |
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| keeping the internal environment the same / stable internal environment |
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| only requires one individual and offspring is identical to parent |
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| contains ocular lens / magnifies 10x |
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| sum total of all the chemical reactions that occur in your body |
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| Fine adjustment knob (Fine focus) |
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| hereditary information in cells |
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| one cell completes all tasks |
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| process by which forms of life having traits that better enable them to adapt to specific environmental pressures, as predators, changes in climate, or competition for food or mates, will tend to survive and reproduce in greater number than others of their kind |
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| process by which two small molecules combine to make a large molecule and requires energy |
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| reaction in which a large molecule is broken into two smaller molecules and energy is released |
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| to develop by a process of evolution to a different adaptive state or condition |
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| connection of living material surrounded by a barrier |
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| cells are specialized to do certain jobs |
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| system formed by the interaction of a community of organisms with their environment |
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| change in the gene pool of a population from generation to generation by such processes as mutation, natural selection, and genetic drift |
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| the synthesis of complex organic materials, esp. carbohydrates, from carbon dioxide, water, and inorganic salts, using sunlight as the source of energy and with the aid of chlorophyll and associated pigments |
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| 4x, 10x, 40x magnification |
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| Diaphragm, controls amount of light |
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| too large of a unit to measure microscopic organisms (UM) |
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| anything that has mass and takes up space |
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| bond formed when atoms gain and lose electrons |
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| two bonds holding two atoms together |
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| areas where the molecule is more positive or negative |
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| attraction of water with water |
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| a measure of how fast molecules move |
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| substance being dissolved |
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| any substance that when added to water produces more OH- ions |
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| when two elements are fused together creating another substance |
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| living organism and contains carbon |
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| pure substance that cannot be broken down into a simpliar substance by normal chemical means |
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| Mass Number (Atomic Mass) |
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| bonding that results when atoms share electrons |
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| attraction between water and another substance |
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| average speed of molecules |
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| scale used to measure the number of H+ ions and OH- ions |
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| compound containing only hydrogen and carbon |
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| two or more elements that are chemically combined in a fixed proportion |
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| 2 or more atoms that are covalently bonded |
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| no attraction to electrons |
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| bonds between water molecules |
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| caused by asymmetries in the intermolecular forces between surface molecules |
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| what is dissolving the solute |
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| any substance that when added to water produces more H+ ions |
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| sulfuric acid and nutric acid from burning fossil fuels |
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| process by which small molecules combine to form a large molecule |
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- sugars and starches
- important energy source (immediate or stored)
- contains C, H, O (H and O 2:1)
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| simplest carbohydrate (one sugar) |
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| animal starch, how animals store excess carbohydrates |
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| gives the plant its structure and rigidity / found in cell wall |
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| action takes place in area or molecule that is actice or reactive |
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| 2 compounds with the same chemical formula but a different structure / different properties |
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| process by which two monomers are combined with the removal of water |
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| process by which a disaccharide is broken into two monosaccharides with addition of water |
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- made up skin, muscle, hair, fingernails
- act as antibodies
- found in cell membrane
- act as hormone
- enzymes
- C, H, N, O
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| proteins made specifically to attack anything that is foriegn |
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| pump molecules in and our of cells |
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| acts as a catalyst to speed up reaction |
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| linking two amino acids together |
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| change shape of enzyme so it does not work |
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- fats and oils
- contain C, H, O (H and O greater than 2:1)
- nonpolar
- store energy
- form cell membranes
- insulates body
- steroids
- cushions organs
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Glycerol and three fatty acids
(Triglyceride) |
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contains maximum number of hydrogens, only single bonds, solid at room temp, derived from animals
(Unhealthy) |
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does not hold maximum number of hydrogen, could have double bonds, liquid at room temp, derived from plants
(Healthier) |
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| waxy substance that makes hormones, bile acids, and used for energy |
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- Low Density Lipid Protein
- BAD = clogs arteries, form plaque in arteries
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- High Density Lipid Protein
- GOOD = removes LDL
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- C, H, O, N, P
- stores genetic info for the cell
- use of 4 compounds to store the hereditary info
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| involved in making protein |
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