Do all autotrophs use the sun as an energy source

Someone me with this: a mineral' is determined by its actomic structure.

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

Asolution in which the salt concentration is higher outside the cell than the salt concentration inside the cell is called