Ima hot?? if you say yes you are a jealouse b.​

this is just plain rude to my eyes like dam dude imma have night mares not even cool

Explanation:

:0 omggg wo

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

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.