<span>epidemiological studies</span>
Answer:
When the diffrence is small like between Oxygen and Carbon the electrons will be shared. When it is large like in Na and Cl the Cl will steal one electron.
Explanation:
The answer, is bryophytes are also called pioneer plants.
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Answer:

Exocytosis is the reverse of endocytosis. <em><u>Quatities of material are expelled from the cell without ever passing through the membrane as individual molecules.</u></em> By using the processes of endocytosis and exocytosis, some specialized types of cells move large amounts of bulk material into and out of themselves.