BIOL 1202 : SI EXAM 3 PART 1 ANSWERS
Document Summary
Warm up: fill in the table with correct terms. Diploblastic two primary germ layers, endoderm and ectoderm. Radula: rasp-like feeding organ; scrapes and scoops food. Trematoda (also called flukes) are a class of the phylum platyhelminthes and consist of parasitic creatures that almost always prey on vertebrates. Choanocytes are specialized flagellated cells found in sponges that trap food and ingest it by phagocytosis. Insects have a closed circulatory system with a heart that pumps hemolymph around the organs. In insects, gas exchange occurs through __tracheal_________ tubes. The class known as arachnids, is a class of the phylum ______arthropods____________, they use. The _____chelicera__________, commonly known as fangs in most arachnids, is sometimes connected to a venom sac used to incapacitate and sometimes kill prey. Arthropod bodies are covered by an exoskeleton made of _____chitin_________, a polysaccharide also found in the cell walls of mushrooms. Label the columns with the correct corresponding subphyla"s for the phylum chordata.
