Do amphibians have blood? Do amphibians have a complete respiratory system? Do amphibians have a complete digestive system? Can all amphibians change sex? Can amphibians change sex? Can amphibians live in saltw
Referring to members of Class Scyphozoa, what specific type of digestive system do these animals have? Which type of worm lacks a complete digestive tract? a. Flatworms. b. Annelids. c. Roundworms. d. All of the above. Which of the following organisms have a one-way ventilation mechanism...
eumetozoa,havecloselyfunctioning tissues. –Diploblastic,haveonlytwocelllayers…like hydraandjellyfish. –Triploblasticandthreecelllayers. –Thethree“germlayers”germlayers”aretheectoderm, mesodermandendoderm. •Anothergroupofanimals,theparazoa