Biology- The study of life.
Cell- Highly organized, tiny structures with thin coverings called membranes.
Reproduction- The process by which organisms make more of their own kind.
Metabolism- The sum of all the chemical reactions carried out in an organism.
Homeostasis- Thre maintenance of stable internal conditions in spite of changes in the external environment.
Gene- Sets of inhereted instructions for making protiens.
Heredity- The passing of traits from parent to offspring.
Mutation- A change in the DNA of a gene.
Evolution- Change in the inherited traits of a species changes over time.
Species- A group of genetically similar organisms that can produce fertil offspring.
Natural Selection- Organisms with favorable genes are more likely to survive and reproduce.
Ecology- The science that studies the interactions of living organisms with one another and with the non-living part of their environment.
Observation- The act of noting or perceiving objects or events using the senses.
Hypothesis- An explanation that might be true-a statement that can be tested.
Prediction- The expected outcome of a test.
pH- A relative measure of the hydrogen ion concentration within a solution.
Expirement- A planned prcedure to test a hypothesis.
Control group- A group in an expirement that recieves no expiremental treatment.
Independant variable- The factor that is varied in an expirement.
Dependant variable- The variable that is measured in an expirement.
Theory- A set of related hypotheses that have been tested and confimed many times by many scientists.
Thursday, September 11, 2008
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