Answer:
B12 (cobalamin): Perhaps the most well-known of all the B vitamins, B12 is vital for neurological function, DNA production and red blood cell development. B12 is found naturally in animal sources like meats, eggs, seafood and dairy.
Not to be concerned as long as the diet as a whole provides average amounts
A scientific law should have no exceptions otherwise the law has failed
A gas. This is because none polar solvents contain binds between atoms with similar electronegativities, some examples are carbon and hydrogen
Speciation is b. the process by which new species are formed. They are often caused by the isolation of certain organisms in terms of environment or geographical area. This is part of the evolutionary changes that various species undergo to brought about by natural selection.
