In a scientific experiment how many independent variables should be tested at the same time? A. none B. one C. two D. three or more
In a scientific experiemtn only ONE independent variable should be tested at a time.
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Updated 2/19/2014 5:23:12 AM
Confirmed by jeifunk [2/19/2014 5:23:12 AM]
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Statistics about the climate in a tundra ecosystem were collected for 30 years. Which hypothesis about a population of caribou could be made based on the climate data collected? A. Caribou calf survival is directly related to annual rainfall amounts. B. An outbreak of disease in 1984 killed 35% of the caribou population. C. Caribou remain with the same mate throughout their lifetime. D. Mortality of caribou from hunters was less ...
Weegy: C. Caribou remain with the same mate throughout their lifetime. User: What distinguishes a hypothesis from a theory? A. A theory is a scientific explanation. B. A theory is testable. C. A theory explains a natural phenomenon. D. A theory is backed up by repeated observations and tests. Weegy: D.A theory is backed up by repeated observations and tests. User: What distinguishes a hypothesis from a theory? A. A theory is a scientific explanation. B. A theory is testable. C. A theory explains a natural phenomenon. D. A theory is backed up by repeated observations and tests. Weegy: D.A theory is backed up by repeated observations and tests. User: In a scientific experiment how many independent variables should be tested at the same time? A. none B. one C. two D. three or more Weegy: In a scientific experiment one independent variables should be tested at the same time. (More)
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