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27 Cards in this Set
- Front
- Back
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organism |
living things |
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3 characteristics of living things |
cellular organization similar chemicals use energy |
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last 3 characteristics of living things |
grow & develop respond to their surrondings reproduce |
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unicellular |
single celled organisms that include bacteria the most numerous organisms on earth |
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multicellular organisms |
composed of many cells |
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water is.... |
the most abundant chemical in cells |
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development |
the process of change that occurs during an organisms life to produce a more complex organism |
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growth |
process of becoming larger |
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stimulas |
a change in an organisms surroundings that causes the organism to react |
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reproduce |
the production of offspring that are similar to their parents |
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controlled experiment |
an experiment where all variables are the same except one |
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manipulated or independent variable |
one variable is being changed |
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basic needs for all living things |
energy water living space stable internal conditions |
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autotroph |
organisms that make their own food |
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heterotrophs |
organisms that can not make their own food |
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homeostasis |
the process by which an organisms internal environment is kept stable in spite of outside changes |
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liquids and proteins |
the two building materials for cells |
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cells |
basic units of structure and function in living things |
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microscope |
an instrument that makes smaller objects look larger |
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simple light microscope |
contains only one lens |
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compound microscope |
a light microscope that contains more than one lens |
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Robert Hooke |
one of the first people to observe cells |
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Leevwenhoek |
first person to observe bacteria |
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Matthais Schleiden |
concluded all plants are made up of cells |
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Theodor Schwann |
concluded all animals are made up of cells |
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Rudolf Virchow |
proposed that all cells came from other cells |
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magnification |
the ability to make things look larger than they are |
