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Definition
| the basic unit of structure and function in an organism |
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| organisms that are composed of many cells that are specialized to do tasks |
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| a change in an organism's surrondings that causes the organism to react |
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| an action or change in behavior |
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| the process of change that occurs during an organism's life to produce a more complex organism |
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| the mistaken idea that living things can arise from nonliving sources |
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| organisms that make their own food |
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| organisms that cannot make their own food |
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| the maintenance of stable internal conditions |
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| the process of grouping things based on their similarities |
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| the scientific study of how living things are classified |
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| the naming system Linnaeus used (also means two names) |
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| a classification grouping that contains similar, closely related organisms |
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| a group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce |
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| organisms whose cells lack a necleus |
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| a dense area in a cell that contains nucleic acids-the chemical instructions that direct the cell's activites |
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| organisms with cells that contain nuclei |
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| an instrument that makes small objects look larger |
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| a widely accepted explanation of the relationship between cells and living things which state: all living things are composed of cells, cells are the basic units of structure and function in living things, all cells are produced from other cells |
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| cell structures that carry out specific functions within the cell |
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| a rigid layer of nonliving material that surronds the cells of plants and some other organisms |
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| the outside cell boundary that controls which substances can enter or leave the cell |
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| the region between the cell membrane and the nucleus |
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| the powerhouses of the cell because they convert energy in food molecules to energy the cell can use to carry out its functions |
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Definition
| carry proteins and other materials from one part of the cell to another |
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| function as factories to produce proteins |
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| recieves proteins and ither newly formed materials from the endoplasmic reticulum, package them, and distribute them to other parts of the cell |
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| capture energy from sunlight and use it to produce food for the cell |
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| the storage areas of cells |
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| small round structures containing chemicals that break down certain materials in cells |
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