Majors animal: Lab practical three
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| Who is/are the intermediate host(s) for the liver fluke? | Snail and fish
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| Who is/are the definitive host(s) for the liver fluke? | Human
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| Which stage(s) of the liver fluke life cycle would we have found in the snails we crushed up? | Egg with miracidium, miracidium, sporocyst, redia, cercaria
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| What is the intermediate host in the schistosome life cycle? | Snail
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| Is the schistosome a monogenetic or digenetic parasite? Which class does this fluke belong to? a) Class Trematoda b) Class Monogenea | Digenetic parasite; a) Class Trematoda
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| Which disease is caused by schistosomes? a) Malaria b) Elephantiasis c) Trichinosis d) Schistosomiasis e) Sleeping sickness f) None of the above | D) Schistosomiasis
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| Nematomorpha common name is _________. | Horsehair worms
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| Kinorhyncha common name is __________. | Kinorhynchs
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| Nematoda common name is _________. | Nematodes (intestinal roundworms, hookworm, pinworm, trichina worm, whipworm, filarial worm)
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| Gastrotricha common name is__________. | Gastrotrichs
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| Loricifera common name is __________. | Loriciferans
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| Rotifera common name is _________. | Rotifers
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| Acanthocephala common name is ___________. | Spiny-headed worms
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| Priapulida common name is __________. | Priapulids
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| What is the function of the corona on a rotifer? | Creation of ciliary currents to sweep food into the mouth and swimming
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| What is the function of the mastax on a rotifer? | Grinding of food
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| What is the function of the toes of a rotifer? What is the function of the vitellarium of a rotifer? | Attachment to substrate; forming yolk
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| Where do rotifers live? | In plankton and bottom samples of lakes and ponds
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| What type of body symmetry do rotifers have? | Bilateral symmetry
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| T or F: Rotifers have true segmentation. | False
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| Rotifers in the genus Philodina have no males in the population, so eggs (ova) produced develop exclusively by _______.What grade of tissue construction do rotifers have? a) Tissue grade b) Diploblastic c) Triploblastic d) Monoblastic e) None of the above | Parthenogenesis; c) Triploblastic
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| What is the definitive host in the human blood fluke (Clonorchis) life cycle? | Human
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| What are the intermediate hosts in the human blood fluke (Clonorchis) life cycle? | Snails and fish
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| What are the three sponge body plans? | Ascon, sycon, leucon
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| Give two functions for cnidocytes in hydras. | Defense and prey detection
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| What is the function of the gastrovascular cavity in hydras? | Extracellular digestion of prey
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| What type of reproduction is the bud of a hydra? | Asexual budding
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| What is the function of the basal disc in hydras? | Attachment to substrate
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| What is the function of the mesoglea in hydras? | Body support
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| What type of symmetry do hydras have? a) Asymmetrical b) Radial c) Bilateral | B) Radial
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| What type of tissue construction do hydras have? a) Tissue grade b) Diploblastic c) Triploblastic | B) Diploblastic
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| Are Ascaris roundworms free-living or parasitic? | Parasitic
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| Are Ascaris roundworms monoecious or dioecious? | Dioecious
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| Are Ascaris roundworms monogenetic or digenetic? |
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| What type of body symmetry do Ascaris roundworms have? | Bilateral
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| What grade of tissue construction do Ascaris roundworms have? | Triploblastic
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| T or F: Ascaris roundworms have cephalization. | True
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| T or F: Ascaris roundworms have segmentation. | False
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| In terms of body cavity, Ascaris roundworms are a: a) Acoelomate b) Pseudocoelomate c) Eucoelomate d) Quadcoelomate e) None of the above | B) Pseudocoelomate
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| What is the function of rhopalia on a scyphozoan jellyfish? a) Sensory organ b) Aids in feeding c) None of these d) Balancing organ e) Contains the cnidocytes | A) Sensory organ
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| What is the function of the gonad on a scyphozoan jellyfish? | Reproduction
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| Most cnidarians develop from a blastula to a gastrula to a _______ larva. a) Hydrotheca b) Parenchymula c) Sporocyst d) Planula e) Cercariae | D) Planula
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| What is the function of amoeboid cells in sponges? | To distribute food to the sponge
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| Are most species of sponges marine or freshwater? | Marine
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| All freshwater and a few marine sponge species form asexual buds called _________. | Gemmules
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| What is the specific name for this type of sexual reproduction (ie two paramecia)? | Conjugation
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| List three materials sponges can be made of. |
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| What is the function of the contractile vacuole? | Excess water and waste secretion
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| What phylum is Vorticella in? | Phylum Ciliophora
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| What phylum and class do Obelia belong to? | Phylum Cnidaria; Class Hydrozoa
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| The movement away or toward light is called what? | Phototaxis
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| The movement away or toward touch is called what? | Thigmotaxis
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| The movement away or toward a chemical is called what? | Chemotaxis
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| What is the name of the disease caused by a parasitic roundworm that can be contracted by eating raw or inadequately cooked pork or bear meat? Causes mild muscle aches and if it reaches brain can cause death. | Trichinosis
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| In Ascaris lumbricoides the female and male being different sizes is a good example of __________. | Sexual dimorphism
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| List three nematodes (common names). | Hookworm, pinworm, whipworm
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| List three types of asexual reproduction in Cnidarians. | Budding, fragmentation, regeneration
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| What type of nervous system do we find in Cnidarians? | Decentralized nerve nets
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| This chemical is released by living cells and stimulates the hydra to open its mouth and secrete a mucous to aid in swallowing: a) Guanine b) Glucose c) Galactose d) Glutathione e) None of the above | D) Glutathione
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| What does cytoplasmic streaming do for an amoeba? | Cell locomotion
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| What is pinocytosis? | Ingestion of liquid into a cell by the budding of small vesicles from the cell membrane
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| What is phagocytosis? | Ingestion of bacteria or other material in which extensions of plasma membrane elongate and surround food, forming a food vacuole for enzymatic digestion
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| What organelle do primarily freshwater protozoans use to osmoregulate? | Contractile vacuole
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| Certain species of the genus Trypanosoma cause what disease? | African trypanosomiasis (sleeping sickness)
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| The animal that causes elephantiasis belongs to what phylum? | Phylum Nematoda
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| In which phylum of animals would choanocytes found? | Phylum Porefora
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| What function do choanocytes serve? | Generate a flow of water through the sponge
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| The heartworm is a nematode that infects dogs, cats, and humans and resides in the pulmonary arteries and can produce numerous offspring (progeny) every day and moves from host to host via the ______ which is the vector. | Mosquito
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| The nematode found in the placenta of the sperm whale can reach ____ meters in length. | 9 (30 feet)
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| A female Ascaris spp releases about ____ fertilized eggs per day as long as males are present to do the fertilizing. | 200,000
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| What phylum does the hookworm belong to? | Phylum Nematoda
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| Research shows being infected with hookworms helps alleviate symptoms of autoimmune diseases. Give two examples of diseases they could reduce symptoms in. | Rheumatoid arthritis, multiple sclerosis, Addison disease
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