TAMU Bio 112 Lab Exam 2 Questions and Correct Answers

TAMU Bio 112 Lab Exam 2 Questions and Correct Answers Define animal - Correct Answer multicellular organisms and heterotrophic what is the difference between a protostome and a deuterostome? - Correct Answer P-Mouth develops before anus, spiral and determinate D-Anus develops before mouth, radial and indeterminate most phyla of animals are classified in which three clades of bilateral animals? - Correct Answer lophotrochozoans, ecdyzozoan, dueterosomes what phylum are lophotrochozoans? - Correct Answer Platyhelminthes, Annelida, mollusca what phylum are ecdysozoa? - Correct Answer Nematoda, Arthropoda What phylum are Dueterostomia? - Correct Answer Chordata and Echinodermata what type of tissue organization do sponges posses? - Correct Answer ablastic How does gas exchange occur in a planarian? - Correct Answer diffuses through its body What is the name of the structure that helps hold a clam shell closed? - Correct Answer adductor muscles what is the external reproductive structure in male Ascaris? - Correct Answer Spicule What is the major support system of the Lancelet? - Correct Answer Notochord