Coming up with the theory of evolution
Because two organisms one with the trait and one without could make an organism which would cause variation
The answer is A hope this helps .................................................just to fill in some space
<span>The answer to this question is no, everything that is ingested needs to be metabolised, unless it is a medicine specifically formulated for oral adsorption directly into the bloodstream, or in this instance the energy source is a ketonic monosaccharide. Because it is so small and a simple structure, it can enter the blood barrier directly and the body can then use this as energy.</span>
You esophagus is your throat.
