3. Snelgrove describes a fishing disaster that occurred where he grew up in Canada in an effort to explain how we are now experiencing "shifting baselines." Explain
what he means by this term.

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.

answer///multiple alleles;

what is this saying?

i think this picture will you.