An atom can be an ion, but not all ions are atoms. The difference between an atom and an ion has to do with net electrical charge. ... The identity of an element is determined by the number of positively charged protons in the atom's nucleus. A stable atom contains the same number of electrons as protons and no net charge.
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Plasmids, they are rings of DNA often used in procedures like insulin production and cloning
Answer:
Tissue fluid is formed from the plasma by process of diffusion and filtration. This fluid occupies the intracellular space and forms the connecting link in the transport of nutrition, gases and the metabolic end products between blood capillaries, tissue cells and the lymph.
Explanation:
1.autotrophs
2.both autotrophs and heterotrophs
3.heterotrophs
4.autotrophs
5.autotrophs
6.both heterotrophs and autotrophs
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