Several species of leopard frogs are common throughout North America, where their ranges overlap. Different species of leopard frogs are very similar in appearance, but the males of each species have a unique courtship call. How did speciation most likely occur in leopard frogs?

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.