lab 1
Which of these would be a valid hypothesis?
Select one:
a.
Humans are controlled by forces beyond our understanding.
b. Humans and bacteria share a common genetic code.
c.
Humans should help in the conservation of other animal species.
d. Humans are responsible for the sustainable use of resources.
e. Human history is determined by a series of supernatural events.
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Question 2
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A hypothesis is a(n) ______.
Select one:
a. guess
b. tentative explanation
c. law
d. observation
e. fact
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Question 3
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In a scientific experiment, the control group ______.
Select one:
a. serves as a basis of comparison with the experimental group
b. is required for the validity of discovery science
c. serves to increase the sample size of the experiment
d. allows for the simultaneous testing of multiple variables
e. is subjected to the factor whose effect is being tested
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Question 4
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How do hypotheses differ from theories?
Select one:
a. Theories are more comprehensive than hypotheses.
b. Hypotheses are educated guesses, and theories are tentative explanations.
c. Hypotheses are derived from experimentation, whereas theories are derived from observation.
d. Hypotheses are more generally stated than theories.
e. Theories must be testable; hypotheses do not need to be testable.
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Question 5
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A high-powered microscope that produces an image from scattered secondary electrons is the
Select one:
a. immunofluorescence microscope.
b. confocal microscope.
c. bright-field light microscope.
d. scanning electron microscope (SEM).
e. transmission electron
Select one:
a.
Humans are controlled by forces beyond our understanding.
b. Humans and bacteria share a common genetic code.
c.
Humans should help in the conservation of other animal species.
d. Humans are responsible for the sustainable use of resources.
e. Human history is determined by a series of supernatural events.
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Your answer is correct.
Question 2
Incorrect
Mark 0.00 out of 2.00
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Question text
A hypothesis is a(n) ______.
Select one:
a. guess
b. tentative explanation
c. law
d. observation
e. fact
Feedback
Your answer is incorrect.
Question 3
Correct
Mark 2.00 out of 2.00
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Question text
In a scientific experiment, the control group ______.
Select one:
a. serves as a basis of comparison with the experimental group
b. is required for the validity of discovery science
c. serves to increase the sample size of the experiment
d. allows for the simultaneous testing of multiple variables
e. is subjected to the factor whose effect is being tested
Feedback
Your answer is correct.
Question 4
Incorrect
Mark 0.00 out of 2.00
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Question text
How do hypotheses differ from theories?
Select one:
a. Theories are more comprehensive than hypotheses.
b. Hypotheses are educated guesses, and theories are tentative explanations.
c. Hypotheses are derived from experimentation, whereas theories are derived from observation.
d. Hypotheses are more generally stated than theories.
e. Theories must be testable; hypotheses do not need to be testable.
Feedback
Your answer is incorrect.
Question 5
Correct
Mark 2.00 out of 2.00
Flag question
Question text
A high-powered microscope that produces an image from scattered secondary electrons is the
Select one:
a. immunofluorescence microscope.
b. confocal microscope.
c. bright-field light microscope.
d. scanning electron microscope (SEM).
e. transmission electron