QUESTION 6 Which statement is true about graded potentials?
a. They always produce action potentials.
b. They always depolarize a neuron.
c. They change the voltage of a neuron by different amounts.
od. They are "all-or-none."
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Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

In what part of the body does the most muscle activity happen?