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Bio Vocab 1.1 & 1.3
Advanced biology vocab C1.1 & 1.3
Question | Answer |
---|---|
Biology | the study of life |
Cell | highly organized, tiny structures that are the smallest unit capable of all life functions |
Reproduction | process which organisms make more of their own kind |
Metabolism | the sum of all chemical reactions in the body |
Homeostasis | maintaining a stable internal environment |
Gene | basic unit of heredity |
Heredity | the passing of traits from parents to offspring |
Mutation | a change in the DNA of a gene |
Evolution | change in the inherited characteristics of species over generations |
Species | a group of genetically similar organisms that can produce fertile offspring |
Natural selection | the process in which organisms with favorable traits are more likely to survive and reproduce |
Ecology | the branch of biology that studies the interactions of organisms with their environment |
Observation | the act of noting or perceiving objects or events using the senses; usually 1st step in SM |
Hypothesis | a testable possible explanation of an observation (an educated guess); usually 2nd step of SM |
Predictions | the expected outcomes of a test |
pH | the relative measure of the hydrogen concentration within a solution |
Experiment | a planned procedure to test a hypothesis |
Control group | a group in an experiment that receives no experimental treatment |
Independent variable | this is the one variable (or factor) that the scientist changed |
Dependent variable | the variable that is measured (the results) because of the change the scientist made |
Theory | a set of numerous related hypotheses that confirm the observation |