What four characteristics are held by ALL chordates at least in the embryological stage.

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

i was thinking 4.0 v hope this

c is the answer to this question. altitude affects the weather because air molecules evaporate.