How does the atomic mass of an atom differ from the atomic number? 1.The atomic mass involves neutrons, while the atomic number does not.
2.The atomic mass involves electrons, while the atomic number does not.
3.The atomic mass involves protons, while the atomic number does not.

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?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Match each phylum or class to its correct characteristic