A. Over a period of 10 days, I asked the
teacher to keep the door open. I then
measured the temperature of the room and
body core temperature. I also recorded
whether I sweated or not. I then repeated
this procedure 10 days with the door open.
This is most closely associated with
which step in the scientific method?

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

c. establishing proper sleep hygiene

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