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Acoelomates & pseudocoelomates Zoology, 25 February 2008 Donald Winslow Following Hickman, et al Ch. 14 (pp ) Ch.15 (pp ) Ch.18 (pp )
Bilateria Bilateral symmetry & cephalization Phylum Acoelomorpha (diploblastic) Superphylum Protostomia (triploblastic) –Lophotrochozoa Acoelomate worms, pseudocoelomate worms –Ecdysozoa Pseudocoelomate or eucoelomate Superphylum Deuterostomia (triploblastic)
Acoelomate worms Primary bilateral symmetry No coelom Three germ layers Organ-system level of organization Muscles for locomotion & feeding Excretory system Phyla Platyhelminthes, Nemertea, etc.
Phylum Platyhelminthes flatworms Free-living & parasitic species Anterior ganglia, ladder-type NS Sensory organs Excretory system Usually hermaphroditic & outcrossing Parasitic spp w/ complex life-cycles
Phylum Platyhelminthes Class Turbellaria Class Trematoda Class Monogenea Class Cestoda
Other acoelomate phyla Phylum Acoelomorpha (Phylum Mesozoa)not triploblastic Phylum Nemertea Phylum Gnathostomulida
Lophotrochozoan pseudocoelomates Phylum Rotifera Phylum Acanthocephala Phylum Gastrotricha Phylum Entoprocta
Ecdysozoan Pseudocoelomates Phylum Nematoda Phylum Nematomorpha Phylum Kinorhyncha Phylum Loricifera Phylum Priapulida
Phylum Nematoda Longitudinal muscles & muscular pharynx Anterior & posterior nerves, sense organs Usually separate sexes Females larger than males Microscopic eggs Eutely
Animals Biology Donald Winslow 8 April Kingdom Animalia Sponges (invertebrate) Radially symmetrical animals (invertebrate) Bilaterally symmetrical.
Platyhelminthes Acoelomate Flatworms. Todays Objective TSW take notes on the phylum Platyhelminthes including economic importance, an overview of class.
WORMS. Flatworms: Phylum Platyhelminthes Soft and Flat Soft and Flat Tissues and Internal Organ Systems Tissues and Internal Organ Systems 3 embryonic.
P H Y L U M P L A T Y H E L M I N T H E S ( F L A T W O R M S ! ) Diana Luo Hong Joo Kim Carrie Yang Period 5
Unit 4 - Phylums Platyhelminthes and Nematoda Flatworms and Roundworms.
Platyhelminthes Quick Quiz: How long are the longest flatworms? Eugene Lee, Hyun Seok Lee.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece.
Morphology General Zoology, 24 January 2011 Donald Winslow Readings from Hickman et al. 2011: Ch. 9 pp , ,
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings PowerPoint ® Lecture Presentations for Biology Eighth Edition Neil Campbell.
Characteristics of Phylum: Platyhelminthes Mostly parasitic Organ level organization (no specialized circulatory or respiratory structures) Have undergone.
Ch. 10,11- Phylums Platyhelminthes and Nematoda Flatworms and Roundworms.
Today s Objectives TSW be able to recognize and give examples of the three types of symmetry found in animals. TSW be able to properly use directional.
How Many Kingdoms? Multicellular Animals MyxozoansProtozoans Tracheophytes Bryophytes True Fungi Slime Molds Red algae Brown Algae Green Algae Chrysophytes.
WORMS. Flatworms Phylum: Platyhelminthes Phylum: Platyhelminthes Bilateral symmetry Bilateral symmetry Cephalization Cephalization Acoelomates-without.
Animal diversity Ch 32. Overview: Welcome to Your Kingdom The animal kingdom extends far beyond humans and other animals we may encounterThe animal kingdom.
Cnidarian Reproduction Asexually – budding (polyp form) Sexually –have separate male and female medusae that produce gametes that join through external.
Kingdom Animalia Body Plans – Symmetry – Reproduction Development – Adaptations.
P. Nemertea Ribbon Worms Non-parasitic life cycle Mostly marine Digestive tract is complete*** Have a long proboscis which lays within the rhynchocoel,
Nematoda By: John Lee, Jon Fuller, and Vicky Hung.
INVERTEBRATES About 97 percent of all animals are invertebrates.
Nematoda By Liviu, Ross, and Yuchen Ross.
INVERTEBRATES CH Kingdom Animalia Major Characteristics= eukaryotic, multi-cellular, heterotrophic, lack a cell wall Invertebrates Include 95-97%
Kingdom Animalia Sponges Cnidarians Flatworms Roundworms.
The Animal Kingdom. Characteristics of Animals Multicellular eukaryotes Heterotrophic Gametic Life Cycle (dipoid/meiosis/gametes/fertilization/zygote/
Molluscs & Annelids Zoology LS2014, Donald Winslow 3 March 2008, Following Hickman, et al., 2008 Ch. 16 (pp , ) Ch. 17 (pp )
Evolution & Morphology General Zoology, 18 January 2008 Donald Winslow Readings from Hickman et al. 2008: Ch. 6 pp , , Ch. 9 pp ,
Sponges are sessile and have a porous body and choanocytes Sponges, phylum Porifera, live in both fresh and marine waters Sponges lack true tissues and.
1 Invertebrates. 2 Animal Characteristics All organisms in this kingdom have these common characteristics: All organisms in this kingdom have these common.
Architectural Pattern of an Animal Chapter 9. The Appearance of Major Body Plans The Cambrian explosion marks the earliest fossil appearance of all major.
Click on a lesson name to select. Chapter 25 Worms and Mollusks Section 1: Flatworms Section 2: Roundworms and Rotifers Section 3: Mollusks Section 4:
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