Which feature is shown only by higher invertebrates, as compared to lower invertebrates?
a) bilateral symmetry
b) true coelom
c) three germ layers

What factors contribute to the effect an environmental toxin has on the human body?

Your two friends just told you what to order for them at the drive through fast food restaurant. you give the order but when the food comes about 10 minutes later, you don't remember what each of your friends ordered your memory of the order was in __ memory. a. semantic b. flashbulb c. long-term d. short-term i think i know but i'm not really sure

According to these anatomical structures which two animals are probably most closely related