It's perfectly natural for loss to be followed by .feelings of euphoriab. a long period of happinessc. celebrationd. grief select the best answer from the choices provided. abcd

Option (d) is the correct answer.

Explanation:

When a person suffers from a loss or undergoes any type of sad phase in his life then the person suffers deep sorrow which is also called grief.

This feeling of grief can be expressed by crying.

For example, sudden death of a family member will cause grief in the family.

Whereas euphoria is the feeling of excitement or happiness which arises when something good happens.

And when something really great happens in someone's life then people used to celebrate it by conducting a party.

For example, birth of a baby girl bought joy in a family due to which a party was organized by the family members.

Hence, we can conclude that it's perfectly natural for loss to be followed by grief.

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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lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.