Circle all words that correctly apply to/describe hemoglobin:
(a.) protein
(b.) carbohydrate
(c.) composed of amino acid
(d.) chemical molecules
(e.) composed of dna.
(f.) composed of rna
(g.) carries o2 through the bloodstream

Not very sure if this is correct but I think your answers are A, B, C, and G. I'm so sorry if I don't help.

your a sped   no one cares

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.