Answer: Define Active transport
Explanation: The moving of molecules or ions across the cell membrane.
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Contact forces have a stronger impact on motion, compared to noncontact forces
Answer: B
Explanation: The amount of salt in the inner circle is equal to the amount of salt in the outer circle.
The correct answer is d. both excitation and inhibition.
There is a process which is called summation and it refers to the process that determines whether or not an action potential (on postsynaptic neuron) will be generated by the combined effects of excitatory and inhibitory signals (from the presynaptic neurons). Depending on the sum total of inputs, summation may or may not reach the threshold voltage to trigger an action potential (firing of postsynaptic potential).
