Exam 4 Flashcards
4 groups of Cnidaria
Hydrozoa
Scyphozoa
Cubozoa
Anthozoa
3 classes of Platyhelminthes
Turbellaria
Trematoda
Cestoda
Two classes of Radiata
Cnidaria
Cnetophora
Basic anatomical/morphological features of molluscs
Visceral mass
Mantle
Radula
Foot
4 classes of Molluscs
Polypacophora
Gastropoda
Bivalvia
Cephalopoda
3 classes of Annelida
Polychaeta
Oligochaeta
Hirudinea
4 unifying features of Arthropods
Segmented bodies
Jointed legs
Exoskeleton
Open circulatory system/ sensory organs
4 main groups of Arthropods
Chelicerata
Myriapoda
Hexapoda
Crustacea
General features characterizing Echinodermata
Radial symmetry
Endoskeleton
Water-circulatory system
Three main groups of Chordates
Urochordata
Cephalochordata
Vertebrates (craniata)
Two anterior appendages on spiders and scorpions
Pedipalps
Two features insects have that contributed to their evolutionary success
Flight/wings
“Niche partitioning”
Taxa that cause human illness
Cnidarians- produce toxins/poisons
Trematoda- Schistomiosis and Swimmers Itch
Cestoda- tapeworms
Choanoflagellates
Nearest non-animal taxon
Ediacarian Fauna
Late protozoic 635 million years ago
Morphology
Body symmetry recognized as Bilateral or Radial
Germ Tissue
Unspecialized tissues at gastrulation
Diploblastsic
Ectoderm and endoderm are present in gastrula and separated by space
Triploblastic
Blastocoel replaced my mesodermal tissue
Coelomate
Body cavity lines by tissues derived from mesoderm
Blastophore
Opening of archenteron develops anus in deuterostomes and the mouth in protostomes
Blastula
Hollow ball of cells that marks the end of cleavage stage during embryonic development
Gastrula
Embryonic stage encompassing the formation of three layers: ectoderm, mesoderm, endoderm
Cleavage
Pinching of plasma membrane
