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An organized unit that can survive and reproduce by itself, using energy, necessary raw materials and DNA instructions
A state of overall internal chemical and physical stability that is required for survival of cells and the body as a whole
Characteristics of Life
1. Living things take in and use energy and materials
2. Living things sense and respond to changes in the enviornment
3. Living things consist of one or more cells
4. Living things maintain homeostasis
5. Living things reproduce and grow
Unit of matter in which chemical bonding holds together two or more atoms of the same or different elements
Group of cells and intercellular substances that function together in one or more specialized tasks
Two or more organs that interact chically, physically, or both in performing a common task
The population of all species occupying a habbit; also applied to groups of organisms with similar lifestyles in a habit
An array of organisms and their physical environment, all of which interact through a flow of energy and a cycling of materials
Scientific Method Steps
1.Observe some aspect of nature
2. Ask a question about the observation or identify a problem to explore
3. Develope a hypothesis
4. Make a prediction
5. Test prediction
6. Repeat the tests or develop new ones
7. Analyze and report the test results and conclusions
A group that differs from the experimental group only with respect to the variable being studied
A test in which some phenomenon in the natural world is manipulated in controlled ways to gain insight into its function, structure, operation, or behavior
Error that develops when an experimenter uses a sample of a population for an experimental group that is not large enough to be representative of the whole
The only factor that is not the same in the experimental group as it is in the control group
A systematic tested explantion of a broad range of natural events and observations
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