Which group of mammals exhibits the widest distribution and greatest diversity? What phylum does Hydra belong to, and where do they live and what do they eat? Which group has a tentacle ringed mouth and a gastrovascular cavity? a. Sponges. b. Arthropods. c. Flatworms. d. Cnidarians. e....
Which characteristic is not associated with the phylum Chordata? a. a coelom b. segmentation c. a notochord d. an exoskeletonWhich statement is true of at least some arthropods other than arachnids? Select one: a. They have no antennae ...