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Which one of the following is a correct sequence in the biological method?
Observations, Hypothesis, Law, Theory
Hypothesis, Observations, Deduction, Experimentation
Observations, Hypothesis, Deduction, Experimentation
Law, Theory, Deduction, Observations
Which one of these is NOT a characteristic of a hypothesis?
Must be consistent with all available data
Must be testable
Must be correct
Must make predictions
At which point is a biologist most likely to use deductive reasoning?
White taking observations
During hypothesis formulation
During data organization
None of the above
A hypothesis must be testable to be scientifically valid. Being testable means that.
Some observation could prove the hypothesis incorrect
Only a controlled experiment can indicate whether the hypothesis is correct or incorrect
The hypothesis has been proven wrong
There must be several options in the hypothesis to choose from, one of which is correct
What would be the best experimental design for testing a hypothesis that bean plants require sodium?
Measure the amount of sodium in a few bean plants
Grow bean plants with and without sodium
Look for sodium in leaf tissues
Analyze root contents for sodium
A scientific theory has which of the following properties?
It agrees with available evidence
It cannot be rejected
It has been absolutely proven
It does not need to be altered in the light of new evidence
A gardener sees a large snake nearby. He knows that generally snakes sting, so the gardener ran away. The gardener did which of the following?
Used inductive reasoning
Used deductive reasoning
Constructed a theory
Tested a hypothesis
Experimentation is only a step of the scientific process, but it is a very important step because it always
Gives the biologist a correct result
Allows rejection of some alternative hypotheses
Ensures that hypotheses can be confirmed with certainty
Gives scientists a chance to work in the laboratory
Deductive reasoning;
Is always correct
Uses specific observations to draw more general conclusions
Is not applied in biological method
Uses general observations to predict specific conclusions
You are testing a hypothesis; "students learn more if They drink tea before sitting to study". Your 20 experimental students drink tea before studying; you test their learning by giving questions. Your 20 students in the control group should have all experimental conditions identical to the experimental group EXCEPT that;
They should take tea with more milk and sugar
They should take tea before as well as during study
They should not take tea before studying
They should not sit for studying