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Biology Crossword Puzzle

Across
Supported by hypothesis supported by scientific evidence
Process that enables an organism to respond to environmental factors
Explanation for a question that can be formally tested
Single factor that is altered in an experiment
Using numbers or measurements
Regulation of an organism's internal environment to maintain conditions for survival
The study of life
Group of organisms that can interbred
International System of measurement
Down
Information obtained from investigations
Ask questions
Gradual change in a species
The production of offspring
Investigation that tests a hypothesis under controlled conditions
Ability to cause change
Beakers, hot plates, metric rulers, balances
Response
Produced without chemical pesticides, herbicides or fertilizers