Fleming discover a mold as Penicillin<span>, isolated an extract of the unknown agent, and named it penicillin. Then later Florey tested the penicillin on mice and realized it would be as effectively on humans as well.
hope this helps (:
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Nitrogen fixation<span>. </span>Nitrogen fixation<span> is a </span>process<span> by which </span>nitrogen<span> in the Earth's atmosphere is converted into ammonia (NH</span>3<span>) or other molecules available to living organisms. Atmospheric </span>nitrogen<span> or molecular dinitrogen (N</span>2<span>) is relatively inert: it does not easily react with other chemicals to form new compounds</span>
The age group she does fit in is Infancy
A work has no skeleton, which is why it can bend in all different directions, but the main reason i know this, is cause if you pinch a work between your thumb and forefinger, it will break, and there is nothing on the inside of the worm that indicates there is a skeleton