Biology Lab Quiz Invertebrate PDF

Biology Lab Quiz Invertebrate Terms to Know: Tissue: are groups of cells that have a similar structure and act together to perform a specific function. Triploblastic: three layers of tissue. Acoelomate: lacking a cavity Coelomate: The coelom is a body cavity found in the mesoderm. Pseudocoelomate:ca...

Biology Lab Quiz Invertebrate Terms to Know: Tissue: are groups of cells that have a similar structure and act together to perform a specific function. Triploblastic: three layers of tissue. Acoelomate: lacking a cavity Coelomate: The coelom is a body cavity found in the mesoderm. Pseudocoelomate:cavity between mesoderm and endoderm. Invertebrates: an animal lacking a backbone Chordata: a notochord (a hollow dorsal nerve cord), pharyngeal slits, and a muscular tail extending past the anus. Vertebrates: has a back bone Deuterstome: anus forms before math Phylum: Porifera - No tissues/organs: Phylum: Cnidaria - Two tissue layers: Cnidocytes: special cells that deliver a sting to other organisms. Phylum: Platyhelminthes - Flatworms: Cephalized: evolutionary trend toward concentrating nervous tissue, the mouth, and sense organs toward the front end of an animal. Phylum: Nematoda - Pseudocoelomate Worms: Phylum: Mollusca: Clam: Squid: Phylum: Annelida - segmented coelomate worms Segmentation: The division of some animal and plant body plans into a linear series of repetitive segments. Phylum: Arthropoda Chelicerate: Crustaceans: Insects: Phylum: Echinodermata - Spiny Skin Water vascular system: Phylum: Chordata