2. Which group of invertebrates that are divided into segments with a ringed
appearance?
a. Sponges
c. Cnidarians
d. Annelids
b. Echinoderms

3. To what subgroup of arthropods do invertebrates with four pairs of legs
belong?
a. echinodernis
b. crustaceans
c. arachnids
d. nematodes​