The answer is 9 because to find the amount of neutrons you have to take away the atomic number from the mass
The two main points from Darwin's theory of evolution is that 1) most, if not all living organisms evolved from one or just a few common ancestors and that subsequent specialization of further generations then led to new species. Furthermore, he said that 2) the process how this was done was by natural selection where the organisms which were most adapted to their environment were successfully 'remembered in the gene pool'.
B) One swims freely and the other often lives attached to a hard surface.
The answer is C) C6H12O6 + 6O2 → 6CO2 + 6H2O
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Photosynthesis for co2 and o2. process!!
