membrane bound organelles in a cell actually contain DNA of their own so they don't have to actually rely on the rest of what the cell is doing in a similar manner, just because your breathing doesn't mean that your kidneys are working at the same time each one is actually independent of its own actions
The Himalayan mayapple<span> is not an easy plant to </span>get<span> hold of. Yet we humans keep trying, because the poisonous plant also naturally produces </span>podophyllotoxin<span>, a preliminary compound in etoposide—classed as an essential medicine by the World Health Organization (WHO)</span>
Atoms may have different numbers of neutrons. Atoms are the smallest fraction of an element that can exist, and still show the properties of the element. They consists of electrons (negatively charged), protons (positively charged), and neutrons (no charge). The number of electrons is equivalent to the number of protons normally however an atom may loose or pick up electrons and have a positive charge or negative charge. The number of neutrons in the nucleus may vary within a given element to give varieties of atoms we call isotopes.