The maintenance of constant internal conditions in an organism is known as "homeostasis"
Answer:
cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Explanation:
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Wind; which is absent on the moon
<span>Water flow/rain; which is absent on the moon </span>
<span>Plate Tectonics; which is absent on the moon </span>
<span>Substantial Volcanic activity; which is absent on the moon </span>
<span>Life/ Macro- and Micro- ; which is absent on the moon </span>
<span>Glaciers; which are absent on the moon
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The oxygen atoms i believe is the answer