Answer:
C
Explanation:
deer are alive and therefor biotic. As they graze they eat grass, walk on land and use oxygen, - all parts of the environment
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One of the main differences between eukaryotic cells and prokaryotic cells is the presence of a nucleus and other membrane-bound organelles. ... Because of this, scientists believe that both of these organelles originated through endosymbiosis when one small cell began to live inside a larger one.
The answer is: generation of graded potential. Graded potentials are membrane potential of varying sizes in mV that are a result of opening up of ionotropic channels. When the graded potentials net value add up and reach the threshold potential, then an impulse is generated in the post synaptic neuron.
Answer:
severe drought, since other are biotic factors.