Term
| Descriptive Investigation |
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Definition
investigation that involves describing and quantifying parts of a natural or man-made system
(e.g. measuring width of a desk with a meter stick) |
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Term
| Comparative Investigation |
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Definition
investigation that involves collecting data on different organisms, objects, or features, or collecting data under different conditions (time of yearm temperatures, locations)
(e.g. using a hand lens to examine four different rocks) |
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Term
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Definition
| area that receive less than 25 cm of rain annually (evaporation is greater than precipitation) |
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Definition
| all the different populations that live together in an area |
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Definition
| provides rigid support (only for the PLANT CELL) |
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Definition
| controls movement of materials into and out of the cell |
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Definition
| controls activities of the cell and contains DNA |
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Definition
| storage compartment for water and other substances |
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Definition
| fills the cell with a jellylike substance and supports organelles |
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Definition
| releases the chemical energy from food |
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Definition
| produces food for the cell by photosynthesis |
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Term
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Definition
a widely accepted explanation for the relationship between cells and living things
1) All organsims are made of one or more cells.
2) Cells are the basic units of life.
3) All cells come from pre-existing cells. |
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