An amoeba is a single-celled organism that feeds on algae, plant cells, and bacteria. when an amoeba feeds, it first makes contact with the food particle. next, the amoeba starts to surround the particle. once the particle is completely engulfed, it is surrounded by a layer of the amoeba's membrane, forming a vesicle. the ph in the vesicle is then lowered and the contents are degraded. what type of transport is involved in this process?

The type of transport that is involved in this process is called; endocytosis

This is the form of active transport that enables the cells to import large particles that cannot pass across the membrane.

The correct answer is endocytosis.

Explanation:

Endocytosis is a kind of active transport that allows the cells to engulf large particles, which does not possess the tendency to cross through the membrane. It is a bulk system of transportation. The reverse of endocytosis is exocytosis in which the cell removes huge particles to the external surrounding of the cell. The amoeba mentioned in the question follows endocytosis in order to engulf its food.

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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your spelling is a little off : ]