Question 1 which of the following is a member of the class oligochaeta? clam worms earthworms leeches all of the above 1 points question 2 what is an arthropod's exoskeleton made of? cellulose chitin bone all of the above 1 points question 3 which arthropod class do centipedes belong to? arachnida merostomata malacostraca chilopoda 1 points question 4 which of the following is not an echinoderm? sea urchins starfish jellyfish none of the above 1 points question 5 what do all vertebrates have? segmented bodies gills exoskeletons endoskeletons 1 points question 6 which part of the water do lancelets inhabit? surface of freshwater ponds bottom of lakes depths of the ocean shallow sandy coastal areas 1 points question 7 which kind of fish might resemble the earliest vertebrates? lamprey sharks bony fish none of the above 1 points question 8 the fish are the most primitive living fish group bony cartilaginous jawless none of the above 1 points question 9 devonian lobe-finned fish were the ancestors of echinoderms. sharks. amphibians. none of the above 1 points question 10 most reptiles have a nearly heart. four- three- two- none of the above 1 points click save and submit to save and submit. click save all answers to save all answers.