Different of an element have different numbers of neutrons
a. ions
b. isotopes
c. compounds
dmolecules

Apatient is in need of hydration. which type of solution are the patient's cells most likely in?

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid

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?