Life Science 3A 3B
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Created by:
KrebsFamily on September 17, 2011
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14 terms
Terms | Definitions |
|---|---|
 organism | a complete living thing |
| cell | a tiny unit of living material surrounded by a thin membrane, they make up all living things |
| cytoplasm | material in a cell |
| organic compounds | substances that have carbon in them and are normally made by living cells |
| unicellular organisms | tiny organisms made of only one cell |
| multicellular organisms | organisms made of many cells |
| tissue | a group of similar cells working together |
| colonial organisms | organisms made of many cells that usually live together but could live by themselves |
| energy | the ability to do work |
| physical life | a complex organization of nonliving substances that is kept alive by using energy |
| specialized cells | cells that perform functions that no other cells do |
| Robert Hooke | first to use the word "cell" |
| cellular functions | all cells use energy, manufacture materials, respond to their environment and reproduce |
| characteristics all living organisms have in common | organisms have life spans, reproduce, grow, are made of cells, require energy, respond to their environment |
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