Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 42.4, Problem 2EQ
CoreSKILL » The results of Loewi’s experiment supported his hypothesis. Can you think of an alternative hypothesis based on Loewi’s results?
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How can evidence from an experiment be explained in relationship to the hypothesis?
What is the null hypothesis?
Group of answer choices
a)The hypothesis that any patterns in the observed data is due to chance alone and therefore significant.
b)The hypothesis that the observed data is invalid
c)The hypothesis that any patterns in the observed data is due to chance alone and therefore not significant.
A scientist usually accepts a p-value (or alpha level) of 0.05 as the threshold value to reject the null hypothesis.
Group of answer choices
a)True
b)False
Why are hypotheses so important to controlled experiments?
Chapter 42 Solutions
Biology
Ch. 42.1 - Prob. 1CCCh. 42.2 - Prob. 1CSCh. 42.3 - Prob. 1CSCh. 42.3 - Prob. 2CSCh. 42.3 - Prob. 1CCCh. 42.3 - Prob. 2CCCh. 42.4 - What key prior observation led Loewi to develop...Ch. 42.4 - CoreSKILL The results of Loewis experiment...Ch. 42.4 - Prob. 3EQCh. 42 - Prob. 1TY
Ch. 42 - Prob. 2TYCh. 42 - The myelin sheath a. is produced by neurons in the...Ch. 42 - Prob. 4TYCh. 42 - Prob. 5TYCh. 42 - Which of the following contribute(s) to the...Ch. 42 - Prob. 7TYCh. 42 - Prob. 8TYCh. 42 - Prob. 9TYCh. 42 - Prob. 10TYCh. 42 - Prob. 1CQCh. 42 - Prob. 2CQCh. 42 - Prob. 3CQCh. 42 - Describe the difference between an electrical...Ch. 42 - Prob. 2COQ
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- Eggless exposed to mercury seem to be thinnerarrow_forwardWhy might an idea or hypothesis be discardedarrow_forwardSelect one of the four forces of evoultion. Provide a basic defintion of your selected force and review one exmaple. Finally, explain how this force drives evolution and causes evolutionary change over time.arrow_forward
- Formulate three (3) hypotheses.Hypothesis: cause and effect/premise and prediction - ”If..then..” statements Example: “If the glass is tapped, then the fish will swim away” There are four evaluation criteria that a hypothesis must meet. First, it must state an expected relationship between variables. Second, it must be testable and falsifiable; researchers must be able to test whether a hypothesis is true or false. Third, it should be consistent with the existing body of knowledge. Finally, it should be stated as simply and concisely as possible.arrow_forwardRed queen hypothesesarrow_forwardDefine what is wobble hypothesis ?arrow_forward
- Imperial China during the Ming dynasty (1368-1644 CE) could conceivably have started the Scientific Revolution before Europe; its failure to do so might have resulted (at least in part) from each of the following factors except: Chinese colleges were under Imperial control, not independently-chartered as in Europe military expenditures were diverted from ship-building to land-based armed forces foreign trade was dominated by the Imperial Navy, with no profit motive for merchants European sailing vessels of that time were much larger than Chinese treasure ships Chinese religion was polytheistic, while the central government at that time was strongarrow_forwardCan you ever prove a biological hypothesis? Why or why not?arrow_forwarda) Does the data support your hypothesis? b) How could you improve this experiment? Consider the other factors you could have / should have controlled in this experiment.arrow_forward
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