Please help me with this. Thanks
Porifera |
Cnidaria |
Platyhelminthes |
Mollusca |
Annelida |
Nematoda |
Arthropoda |
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# of tissue layers |
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Symmetry type |
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Body Cavity |
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sac or tube/alimentary canal? |
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Protostome or Deuterostome? (or neither) |
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What type of environment(s) do they live in? |
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What/How do they eat? |
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Adaptations for digestion |
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Adaptations for respiration (how do they breathe?) |
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How do they circulate materials? Adaptations for circulation |
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How do they sense their environment? |
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Reproduction/life cycle details |
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Major groups (classes or subphyla) |
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Other key traits/notes |
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• Phylum – Porifera (Gr., porus = pore; ferre = to
bear)
Salient features :-
- Porifera means organisms with holes.
- They are multicellular, radially symmetrical or
asymmetrical organisms exhibiting cellular level of organization
(tissue system not developed).
- Most animals of this group are sedentary, plant –
like, aquatic (fresh water or marine), and remain attached to the
bottom of the sea.
- Body is made up of two germ layers, i.e., they are
diploblastic.
- The skeleton of sponges is formed of needle – like
structures known as spicules. Spicules are made up of calcium
carbonate or silica or sponging fibres.
- Whole body is perforated, bearing small pores called
ostia. Ostia open into a single cavity called spongocoel, which
opens to the exterior through a large opening called osculum. A
regular flow of water is maintained through ostia, spongocoel and
osculum. This system of water movement is called canal system,
which exist in all sponges.
Water from outside Ostia Spongocoel Osculum Outside.
Examples :- Sycon (Scypha)
Bath sponge (Euspongia)
Boring sponge (Cliona)
Freshwater sponge (Spongilla)
Glass – rope sponge
(Hyalonema)
Horse sponge (Hippospongia)
Finger sponge (Halichondria)
Venus flower basket
(Euplectella)
Neptune’s goblet sponge
(Poteria)
• Phylum – Coelenterata (Cnidaria) (Gr.,
Koilos = hollow; enteron = gut)
Salient features :-
- Coelenterates are primitive, multicellular, aquatic
animals. Their cells are organized into tissues.
- They are diploblastic, have two layers of germ cells
– ectoderm and endoderm.
- They have a radially symmetrical body. Mouth is
surrounded by a ring of tentacles.
- Body contains a large cavity called coelenterons or
gastrovascular cavity. Coelenterons has a single opening for
ingestion and egestion.
- Body contains a loose network of nerve cells.
- Body bears special cells called nematocysts for
defence, offence and to capture food.
- Coelenterates exist in two forms – an asexual polyp
form and a sexual medusoid form. In a few coelenterates, these two
forms alternate with each other during life history, a phenomenon
called alternation of generation.
- Some of them live solitary life, eg., Hydra while
some live in colonies, e.g., corals.
Examples :- Freshwater polyp (Hydra)
Organ pipe coral (Tubipora)
Portuguese man of war
(Physalia)
Jellyfish (Aurelia)
Sea pansy (Renilla)
Sea anemone (Metridium)
Red coral (Corallium)
Sea pen (Pennatula)
Mushroom coral (Fungia)
Sea fan (Gorgonia)
Soft coral (Alcyonium)
• Phylum – Platyhelminthes (Gr., platys =
flat; helminthes = worm)
Salient features :-
- They are bilaterally symmetrical, elongated,
dorsoventrally flattened animals, commonly called flatworms.
- Triploblastic, i.e., body consists of three germ
layers, namely, ectoderm, mesoderm and endoderm.
- Body is soft, leaf – like (liver fluke) or ribbon –
like (tapeworm). They are acoelomate (no body cavity
present).
- Respiration and excretion by general body surface.
Circulatory system is absent.
- Excretory organs are in the form of flame
cells.
- Digestive system when present, bears a single
opening, the mouth.
- Mostly parasites (e.g. Tapeworm) but some are free –
living forms (e.g. Planaria). Parasites bear spines, hooks or
suckers.
- Reproductive organs are highly developed.
- Most of them are hermaphrodites, i.e., male and
female reproductive organs are present in the same individual.
Fertilization is internal.
Examples :- Liverfluke (Fasciola hepatica)
Blood fluke (Schistosoma)
Pork tapeworm (Taenia solium)
Beef tapeworm (Taenia
saginata)
Echinococcus
Planaria
•
Please help me with this. Thanks Porifera Cnidaria Platyhelminthes Mollusca Annelida Nematoda Arthropoda # of tissue...
Animals: Invertebrates and Vertebrates Annelida Deuterostome Mollusca Arthropoda Ecdysozoa Nematoda Bilateria Echinodermata Platyhelminthes Chordata Eumetazoa Porifera Cnidaria Lophotrochozoa Protostome 75. 76. 77. 83. 78. 79. 80. 82. 81. flatworms Segmented worms luods dams, Shails, sea stars, sea urchins roundworms Sandopo Crustaceans, insects, spiders lancelets, vertebrates RADIAL jellyfish, coral, anemones 85. 84. NO TISSUES 86. (feeding structure) 87. (shed exoskeleton)
Name: Porifera | Ctenophora Cnidaria Rotifera Platyhelminthes Acoela Mollusca Annelida Nematoda Arthropoda Echinodermata Chordata - coelom Add in the following characteristics: A. True tissue B. Incomplete Digestive Tract C. Complete digestive Tract D. Open Circulatory E. Closed Circulatory F. Hydrostatic Skeleton Ancestral protist Add in the following characteristics (cont.): G. Endoskeleton H. Exoskeleton 1. Nerve Net J. Central Nervous System K. Nerve Ring
Lineage Examples Tissue Organization Body Symmetry C oelom Protostome/ Development Deuterostome Locomotion Support Porifera Cnidaria Ctenophore Platyhelminthes Annelida Mollusca Nematoda Arthropoda Echinodermata Chordata
mals: Invertebrates and Vertebrates Annelida Deuterostome Mollusca Arthropoda Ecdysozoa Nematoda Bilateria Echinodermata Platyhelminthes Chordata Eumetazoa Porifera Cnidaria Lophotrochozoa Protostome 75. 76. 77 78. 79. 80. 81. 82 83. Watworms os Semented worms doms, als Foundworms sea stars. sea urchins jellyfish, coral, anemones crustaceans, insects, spiders RADIAL vertebrates 85. 84. NO TISSUES 86. (feeding structure) 87. (shed exoskeleton) 88) The most ancient branch point in animal phylogeny (what distinguishes sponges from other animals) is that between having A) radial or bilateral...
can someone help me?
solve this phylogenetic treePhylogenetic tree showing the
hypothesized relationships for nine animal phyla. an Inferred from
morphological and developmental characters (based on Freeman 2005,
10); b inferred from molecular characters. In a closed book
laboratory exercise, students are asked to map each of three
characters onto each of these two trees. The characters are (1)
body cavity (acoelomate, pseudocoelomate, or eucoelomate), (2)
number of opening to the digestive tract (one or two), and (3)
segmented body...
clearer picture
mals: Invertebrates and Vertebrates Annelida Deuterostome Mollusca Arthropoda Ecdysozoa Nematoda Bilateria Echinodermata Platyhelminthes Chordata Eumetazoa Porifera Cnidaria Lophotrochozoa Protostome 75. 76. 77. 78. 79. 80. 81. 82. 83. wo Matworms worms dams, was Spunoi sea stars. sea urchins jellyfish, coral, anemones crustaceans, insects, spiders RADIAL landets 85. 84. NO TISSUES 86. (feeding structure) 87. (shed exoskeleton) 88) The most ancient branch point in animal phylogeny (what distinguishes sponges from other animals) is that between having A) radial or...
i need help building a cladogram of the phyla. incorporating
all traits and clades in the table.
Table 1. Phyla, Clades and Traits to be included in the tree. Clades Bilateria Deuterostomia Ecdysozoa Lophotrochozoa Protostomia Radiata Phyla Annelida Arthropoda Chordata Cnidaria Porifera Ctenophora Echinodermata Mollusca Nematoda Platyhelminthes Traits 8 rows of radially arranged combs Acoelomate Body plan Cnidocytes Coelomate Body plan Deuterostome development Diploblastic Dorsal hollow nerve cord Ecdysone Exoskeleton with joint:s Mantle & Mantle Cavity Muscles Nephridia/Metanephridia Protostome development...
bio 170 organismal bio lab
need help filling out last 4 questions!
Phylum Porifera Cnidaria Platyhelminthes Place Nematoda Filesios Mollusca octopus wa Annelida Arthropoda bulacan Echinodermata which Chordata un sca anon coral anthozoa serung des with Publu urhlong 1 FP gar telletish portuguese man of war/ hydrozoa sea pansy Ianthozoa wacht www Looks Lice nce Phylum Platyhelminthes these are the flatworms. They have soft, elongated bodies and exhibit several advances over cnidarians. They have three distinct tissue layers (triploblastic construction),...
QUESTION 1 The “Cambrian Explosion” describes the relatively sudden appearance of __________ in the fossil record in the Cambrian. Metazoans Eukaryotes Algae Cephalopods Chocolate 0.5 points QUESTION 2 Poriferans lack: Extracellular matrix Organs Choanocytes Nuclei 0.5 points QUESTION 3 Which of the following has no terrestrial species? Brachiopoda Nematoda Mollusca Arthropoda 0.5 points QUESTION 4 The metazoan phylum with the greatest diversity (i.e., number of species) today is: Arthropoda. Annelida. Cnidaria. Mollusca. 0.5 points QUESTION 5...