EXCRETORY SYSTEMS C All work in the same basic way: Body fluid is filtered by a special organ. Selectively permeable membranes remove urea or uric acid. Osmolarity is controlled by selective reabsorption/secretion. C 5 types of excretory systems: None in porifera‚ cnidaria Protonephridia in planaria & rotifers Metanephridia in annelids Malpighian tubules in terrestrial arthropods Kidneys (with nephrons) in vertebrates Protonephridia Have flame bulbs‚ tubules‚ and nephridopores. C Flame bulbs selectively
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BIOLOGY 1403 – ANIMAL BIOLOGY SP2013 Dr. Matthew Kaser Office: South Science 402 matthew.kaser@csueastbay.edu Office Hours: W 3:30-4:30 Objectives – To introduce students to the science of animals by: * Comparing the structural and functional characteristics of different animal groups in an evolutionary and ecological context. * Conducting experiments‚ collecting and analyzing data‚ and writing scientific papers‚ and through hands-on interaction with animal phyla *
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Protsita - single celled (have a nucleus) Fungi - mushrooms/toadstools etc (do not photosynthesise) Plants - contain chlorophyll and photosynthesise Animals - multi-cellular life forms that rely on other means for nutrition Animal Kingdom Phylum porifera ·Sponges ·Primitive ·No organs or systems ·Basically‚ a group of cells with a common collective purpose ·Sponges are filter feeders Phylum Cnidaria ·Anemones‚ corals and jelly fish ·Possess stinging cells called cnidocytes ·Possess a very
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mesoderm‚ exists between the endoderm and ectoderm. It forms the muscles and most other organs towards the upper layer of the animal. Diploblastic animals‚ or animals with only two germ layers‚ lack mesoderm. There are only two diploblastic phyla: Porifera‚ the sponges‚ and Cnidaria‚ the "bag animals." All other animals are triploblastic. In fact‚ sponges are such simple animals that they lack even true tissue. They are in the parazoan category (parazoans lack true tissue). Sponges are the only animals
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CHAPTER NO-5 KINGDOM ANIMALIA Phylum Porifera (GK: Porous = Pores + Ferro = form) Main characters: 1. They are commonly called as sponges. 2. They are sessile animals. 3. Sponges range in height from about 1cm to 2cm. 4. More than 5000 species of sponges are found. 5. All are marine‚ while some are fresh water. 6. The central body cavity is called spongocoel. 7. A single large opening is called as osculum. 8. They are filter feeders. 9. Body lining is formed by flagellated cells
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Biology 110-12 . 1. What are the five kingdoms and give a brief description of each kingdom? Answer: Monera- Single celled prokaryotes;bacteria Protista - Mostly single celled eukaryotes; Photoautotrophs (algae) and heterotrophs (protozoa) Fungi-Multicellular eukaryotes that feed by extracellular digestion and absorption Heterotrophs: includes decomposers‚ many pathogens and parasites Plantae-Multicellular photosynthetic autotrophs producers Animalia- Diverse multicellular heterotrophs Range from
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Chapter 32/33: Invertebrates Name _______________________ Period ___________ Date ____________________ NONCOELOMATE INVERTEBRATES (CH 32) Sponges are basal animals that lack true tissues 1. Sponges are in the phylum Porifera. This group is now known to be polyphyletic‚ and all sponges belong to either phylum Calcarea or phylum Silicea. They are the simplest animals and lack true tissues. Label the following: pores‚ spongocoel‚ epidermis‚ amoebocytes‚ choanocyte‚ flagellum‚ spicules
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The classification of animals The Classification of animals : Animal Kingdom can be split up into main groups‚ vertebrates (with a backbone) and invertebrates (without a backbone). When you think of an animal‚ you usually think of something like a cat‚ a dog‚ a mouse‚ or a tiger. All told‚ around 800‚000 species have been identified in the Animal Kingdom -- most of them in the Arthropod phylum. In fact‚ some scientists believe that if we were to identify all species in the tropical rain forests
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1. If a mollusk moves by a broad muscular foot‚ it is probably a) a bivalve b) a gastropod c) two-shelled d) a cephalopod 2. A herbivorous mollusk scrapes algae from rocks and twigs with its a) radula b) poison glands c) foot d) feathery gills 3. The cephalopod that has lost its shell completely is the a) octopus b) slug c) cuttlefish d) nautilus e. squid 4. The blood of annelids typically flows a) only in dorsal vessels c. only in ventral vessels b) in a closed circulatory
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SCHEME OF EXAMINATION FOR B.Sc. (ZOOLOGY) SEMESTER SYSTEM w.e.f. Session 2011-12 Scheme of B.Sc. 1st Year Semester I Sr. No. 1. 2. 3. 4. 5. Paper code 1.1 1.2 P-101 2.1 2.2 Nomenclature Life and Diversity from Protozoa to Porifera and Cell Biology – I Life and Diversity from Coelentrata to Helminthes and Cell Biology – II Practical Marks+IA 40+10 40+10 40+10 40+10 40+10 40+10 300 Periods / week 4 4 4 4 4 4 Exam. Duration 3 hrs. 3 hrs. 3hrs. 3 hrs. 3 hrs. 3hrs. Semester II Life and Diversity
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