CHAP 12 INVERTEBRATE TEST
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What characteristic separates invertebrates from vertebrates? | the presence of a backbone
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| Which phylum in the Animal Kingdom has the most species? | Phylum Arthropoda
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| What type of symmetry is found in the worms? | bilateral
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| Name 3 specialized cells in the sponges? | collar cells, flagellated cells, cells that produce the spicules, amebocytes, pore cells
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| What makes a flatworm flat? | lack of body cavities
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| What makes a roundworm round? | fluid within the pseudocoelom; the hydrostatic skeleton
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| What makes a segememted worm segemented? | segmented body wall
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| What helps octopi move swiftly through the water? | siphons
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| The bristles on the earthworm are called ______. | setae
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| What type of feeding do the clams use? | filtering water through their mantle cavity
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| What makes an animal, an animal??? | multicellular, eukaryotic, heterotrophic, nutrition by ingestion, sexually reproducing
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| What are the main characteristics of the Arthropoda? | jointed appendages, exoskeletons of chitin, open circulatory system, segmented bodies
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| Most insecticides enter insects through their respiratory openings called ______________. | spiracles
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| Insects have _____pairs of legs, while arachnids have _______pairs. | 3; 4
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| Organisms that have both male and female reproductive parts are called _____________. | hermaphrodictic
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| What type of circulatory system do the Annelida have? | closed
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| All worms respire (breathe) through their ______? | skin (cuticle)
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| Examples of Porifera? | sponges
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| Examples of Cnidaria? | Hydra, sea anemone, jellyfish, man-o-war
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| Examples of Platyhelminthes? | flukes, tapeworm, Planaria
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| Examples of Nematoda? | Ascaris, pinworm, hookworm
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| Examples of Annelida? | earthworm, leech, marine worm
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| Examples of Mollusca? | clams, snails, squid, slugs
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| Examples of Arthropoda? | any insect, lobster, shrimp, centipede, millipede, spiders
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| Examples of Echinodermata? | starfish, sand dollar, sea cucumber, sea urchin
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| What are the stinging cells of Cnidaria? | cnidocyte
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| In the life cycle of indirect development, what is the dormant stage called? | pupa
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| The tubules of the insects respriatory system are called? | trachae
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| What are the phyla with radial symmetry? | Cnidaria, Echinodermata
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| What is the main characteristic of the Echinoderms? | the water vascular system
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| The water vascular system of the starfish uses individual ____________ form movement and feeding. | tube feet
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| A bundle of nerve tissue at the anterior end of an organism functions a "simple brain" or ________. | ganglion
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| In the earthworm's digestive tract, the food is stored in the ____________ and ground in the _____________. | crop; gizzard
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| Mollusks with 2 shells hinged together are called ? | bivalves
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| An insect's life cycle in which the body form changes completely? | complete metamorphosis
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| The blood pressure in an earthworm is controlled by the __________________? | dorsal blood vessel and aortic arches
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| The insects body plan consists of 3 segments called? | head, thorax, abdomen
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| What are the 4 stages of complete metamorphosis in the insects? | egg, larva, pupa, adult
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| What the 3 stages of incomplete metamorphosis in insects? | egg, nymph, adult
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| What are the main characteristics of the Porifera? | no specialized tissues, body wall penetrated by pores, filter feeders
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| How are the insects able to change out their exoskeletons if it will not grow with them? | the will shed (molt) the exoskeleton periodically
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| Why do the parasitic worms usually lack a structure for movement? | living within the hosts provides them with everything that they would need
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| Advantages of an exoskeleton. | jointed, provides attachemt for muscles, hard to protect, special shape for function
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| Disadvantages of an exoskeleton. | heavy and hard to move, will not grow and must be shed, left unprotected until new one forms
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| In the Cnidaria, food is captured by? | paralizing prey with stinging cells
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| Animals that are sessile usually aquire food by ___________. | filtering food from the water
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| Detritus feeders get their nutrition from? | organic material in the soil or sand that they eat
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| The gastropods are herbivores and remove food from rocks and plants using a scrapping tongue called a ___________. | radula
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| Insects are very successful because of the many mouthparts that they have developed, name some? | sucking, chewing, siphoning, mandibles for crushing
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| What injects the venom from the cnidocyte to the prey? | nematocyst
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