Frequently overexercises and limits all food intake before weighing in for a wrestling match. After weigh in, he eats unusually large amounts of snack foods. Ultimately, putting his body through binge and purge sessions. It is likely that Rex is suffering from:

What are genotypes? what are phenotypes?

20 the compound al(nh3)2 has atoms of nitrogen.

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons