While observing primates at the zoo, you notice that the particular monkey you are watching uses its hands, feet, and tail to hold on to branches and move throughout its enclosure. What must be true of this monkey?

The monkey is a new world monkey

Explanation:

The New world monkey is the monkeys which are evolved from the old world monkey-like apes and many other genera.

These monkeys have evolved from the old world Simian monkeys in South America about 40 million years ago and adapted to survive in the tropical areas of South America and the regions of Mexico.

This monkey can be characterized by their long-tails called prehensile tails, the use of their hands and feet to walk on the trees.

Since the characters of the monkeys provided in the question show similar characteristics to these, therefore, are considered the New World Monkeys.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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