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Cards In This Set
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Levels of organization in nature
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Atom, molecules, cells, tissues, organ, organ stystems, individual organisms, populations, communities, ecosystems, and biosphere
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What are the unifying concepts of life?
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Require energy and matter, sense and respond to stimuli, grow and reproduce, contain DNA
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How to write an organism's scientific name.
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Genus species (species is italicized)
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Name the two domains of prokaryotes and the one domain of eukaryotes
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Bacterium, archaean; eukarya
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What is the most specific taxa and the one with the most broadest characteristics?
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Species; domain
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Steps of scientific method/approach
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1. observe something in nature, 2. form hypothesis about it 3. make predictions about what might occur if the hypothesis is not wrong, 4. test predictions by observation, experiement, or both
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Characteristics of science
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...
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Hypothesis vs. theory
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H= explains broad range of observations and can be used to make useful predictions about other phenomena, T= hypothesis that has not been disproven by many years of scientific study
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Controlled experiment
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In an experiment, group of individuals who are not exposed to the independent variable that is being tested.
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What do common cell structures of all domains include?
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Plasma membrane, cytoplasm, chromosomal DNA
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Nucleus vs. nucleoid
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Nucleus= area of cytoplasm in the eukaryote that is surrounded by nuclear membrane and holds DNA; nucleiod= area of cytoplasm in the prokaryote that hold the DNA
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What three particles make up an atom?
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Protons, neutrons, electrons
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Covalent bond
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Chemical bond in which two atoms share a pair of electrons.
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Nonpolar vs. polar
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N= the atoms involved in the bond are sharing electrons equally (2 of the same atoms); P= atoms involved in the bond do not share electrons equally (2 different atoms)
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Ionic bond
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Type of chemical bond in which a strong mutual attraction forms between ions of opposite charge.
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