If transport through a cell membrane requires the expenditure of energy, it is called: Facilitated diffusion Simple diffusion Active transport

i think that c)gold was found there

but i am not sure

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

a) carbon, hydrogen

b) carbon, hydrogen, oxygen, nitrogen

c) carbon, hydrogen, oxygen, nitrogen, phosphorus

d) sugar

e) amino acid

f) nucleotide