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).
The greater the difference between the dry bulb temperature and the wet bulb temperature, the drier the air is. From the air temperature and the wet bulb temperature, the relative humidity of the air can be easily found.
Answer:
The pairs of chromosomes become arranged on the metaphase plate.
Explanation:
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