The smallest particle of an element that still retains all the elements properties is a

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

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?