The length of time it takes for a planet to revolve around the sun is equivalent to which of the following?
a.
the length of its year
b.
the length of its day
c.
the length of its month
d.
the length of its decade

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.

d. changes in climate and historical records

hope this

i guess because there isn't enough love going around. < 3