ZOO EXAM 2

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ZOO EXAM 2
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  1. NAME THE FLATWORM PLYLUM
  2. PLATYHELMINTHES
  3. TRUE OR FALSE?
    Acoelomates have
    NO cavity lined with peritoneum of mesodermal origin
    TRUE
  4. T OR F
    IN ACOELOMATES, DIGESTIVE TUBE IS THE ONLY INTERNAL BODY CAVITY.
    TRUE
  5. T OR F
    IN ACOELOMATES THE MESODERM CONSISTS OF MUSCLE FIBERS.
    TRUE
  6. EXCRETORY SYSTEM OF FLATWORMS
    Flame cells = protonephridia
  7. DO FLATWORMS HAVE Respiratory, circulatory & skeletal systems ?
    no
  8. REPRODUCTION OF FLATWORMS?
    • Mostly monoecious
    • asexually by fission.
  9. FLATWORM CLASS
    Tubellaria
  10. HOW DO Tubellaria MOVE?
    Ciliated epidermis, moves on slime it creates via cilia and muscles.
  11. HOW DO TUBELLARIA RESPIRE?
    diffusion
  12. Endoparasites of vertebrates e.g., liver flukes, blood flukes, lung flukes
    WHAT CLASS?
  13. Trematoda
  14. 2 TYPES OF HOSTS
    • Intermediate host = the first host - is frequently a mollusc e.g., snail
    • Definitive host = the last host is where sexual reproduction takes place
    • Generally a vertebrate
  15. WHAT PARASITE HAS A FISH IN IT'S CYCLE?
    • FLUKE

  16. WHAT CLASS IS THE TAPEWORMS?
    Cestoda
  17. HOW TO TAPEWORMS OBTAIN NUTRIENTS?
    all nutrients are absorbed across the integument
  18. WHAT IS AT THE TIP OF THE SCOLEX?
    ROSTELLUM
  19. WHAT IS IT?
    Immature proglottid showing the developing reproductive structures.
  20. WHAT IS IT?
    Gravid (mature) proglottid of the tapeworm. Eggs fill the proglottid.
  21. Taenia saginata AKA....
    BEEF TAPEWORM
  22. THE Juveniles OF BEEF AND PORK TAPEWORMS ARE CALLED?
    Cysticerci
  23. HOW DOES Taenia saginata ATTACH ITSELF?
    No hooks on rostellum - has suckers to attach to the intestinal wall
  24. HOW DOES Taenia solium ATTACH ITSELF?
    Hooks and suckers on rostellum (tip of scolex)
  25. BEEF TAPEWORM WHERE IN BOTH HOSTS?
    • BEEF = MUSCLE
    • MAN = INTESTINE
  26. Taenia solium
    WHERE IN HOSTS?
    • PORK TAPEWORM
    • PORK= MUSCLES
    • MAN=INTESTINE.
    • BURRROW TO BRAIN AND EYES
  27. T OR F
    The false coelom is not lined with peritoneum.
    TRUE
  28. WHAT FLUID FILLS
    THE PSEUDOCOELOM?
    perivisceral fluid
  29. Pseudocoelomates
    SYMETERY
    • Bilateral symmetry
    • triploblastic = 3 germ layers
    • Unsegmented
  30. Excretory system
    OF Pseudocoelomates
    • As in the Platyhelminthes
    • consisting of a
    • tubule and ending with
    • a flame bulb or cell.
  31. NERVOUS SYSTEM
    OF THE Pseudocoelomates
    • nerve ring or
    • cerebral ganglia connected
    • to posterior and anterior nerves.
  32. REPRODUCTIVE SYSTEM
    OF THE Pseudocoelomates
    • Sexes usually separate (dioecious)
    • Eggs are microscopic
    • with shell often containing chitin
  33. T OR F FLATWORMS ARE ACOELOMATIC?
    TRUE
  34. ROUNDWORMS BELONG
    TO WHAT PHYLUM?
    Nematoda
  35. T OR F NEMATODES LACK CILIA AND FLAGELLA
    TRUE
  36. T OR F
    Muscles in body wall run longitudinally only,not laterally.
    TRUE
  37. DO NEMATODES
    HAVE NO
    PROTONEPHRIDIA
    • TRUE
    • instead they have a canal system
    • or gland cells opening
    • by excretory pore
  38. NERVOUS SYSTEM OF NEMATODES
    • Ring of nerve tissue and ganglia around the pharynx
    • and give rise to small nerves
    • and 2 nerve cords – 1 dorsal and 1 ventral
    • Sensory papillae on head and tail – the forerunner of antennae
    • No eyes – sight is not required for survival
  39. REPRODUCTION OF NEMATODES
    • Dioecious - there are both male and female nematodes
    • Fertilization internal eggs stored in uterus until deposition
    • The last two are advanced characteristics
  40. Human Roundworm
    SCIENTIFIC NAME
    Ascaris lumbricoides
  41. DOG/CAT ROUNDWORM
    IS KNOWN AS
    Toxocara
  42. HUMAN HOOKWORM
    ANOTHER NAME AND
    WHERE DOES JUVENILES GO?
    • Necator americanus
    • BREAK OUT OF CIRCULATORY SYSTEM TO ALVEOLI THEN OFF TO SMALL INTESTINES VIA TRACHEA.
  43. T OR F
    TRICHINELLA SPIRALIS ARE PARASITIC TO HUMANS
    TRUE
  44. Enterobius vermicularis
    ARE PARASITIC TO HUMANS?
    • YES
    • ELEPHANT DISEASE
  45. MOST COMMON NEMATODE
    PARASITE TO HUMANS
    Ascaris lumbricoides HUMAN ROUNDWORM
  46. WHO'S CYCLE?
    • Ascaris lumbricoides
    • HUMAN ROUNDWORM
  47. WHERE DOES
    HUMAN ROUNDWORM LIVE
    WITHIN US?
    • Adult live
    • in the lumen of the small intestine.
  48. DOES ROUNDWORM REQUIRE 2 HOSTS?
    NO
  49. DOES THE HOOKWORM REQUIRE 2 HOSTS?
    HOW DOES IT LEAVE THE HUMAN HOST?
    • NO.
    • LEAVES THRU SKIN.
  50. DOES TRICHINELLA USE 3 HOSTS?
    • YES
  51. WHAT PARASITE CYCLE HAS ONE HOST?
    • PINWORMS
  52. Wuchereia bancrofti
    (ELEPHANT DISEASE)
    INTERMEDIATE HOST
    DA MOSQUITO
  53. Wuchereia bancrofti
    WHERE DO THEY MATURE
    WITHIN HUMANS?
    LYMPHATIC VESSELS
  54. WHO'S CYCLE?
    • Wuchereia bancrofti
    • THE ELEPHANT DISEASE.
  55. DO MOLLUSCA HAVE A TRUE COELOM?
    • YES
    • fluid-filled space within the mesoderm.
    • Limited mainly to the area around




    the heart and gonads
  56. HOW DO THE MOLLUSCA RESPIRE?
    • gills or lungs;
    • they also exchange gases through the body surface
  57. IN THE MOLLUSCA, WHAT HOLDS THE ORGANS IN PACE?
    • Mesentaries hold organs in place:
    • provide stability with
    • less crowding
  58. WHAT COVERS INTERNAL ORGANS WITHIN THE MOLLUSCA?
    visceral peritoneum
  59. LABEL COELOM
  60. T OR F
    In mollusks, the coelom is not highly developed and is limited to
    the space around heart and gonads.
    TRUE
  61. DOES coelomic
    fluid transports nutrients and wastes in small organisms?
    YES
  62. LABEL ALL 17 PARTS
  63. MOST ACTIVE REGION OF A MOLLUSCA BODY?
    VENTRAL (HEAD-FOOT)


    –Depends on muscular action for its function



    • –Feeding organs, specialized sensory organs (simpleà complex eyes), locomotor
    • organs
  64. IN THE RADULA

    teeth wear away from
    the -----end new ones are
    secreted from the
    --------- end.
    • anterior
    • posterior
  65. THE CENTER OF THE RADULA IS KNOWN AS?
    • ODONTOPHORE
  66. THE FOOT LOCATION AND FUNCTION ON A MOLLUSCS
    • Foot is located posterior to the mouth and includes the following functions:
    • Locomotion via waves of muscular contractions
    • Attachment to substratum
    • Siphon = modified foot - in the
    • cephalopods (squid/octopus) provides jet propulsion
  67. VISCERAL HUMP OF A MULLUSCS:
    DORSAL OR POSTERIOR?
    NAME 6 ORGANS THAT ARE PART OF IT.
    DORSAL.

    • DIGESTIVE GLAND
    • INTESTINE
    • GONAD
    • GILL
    • HEART
    • STOMACH
  68. 2 MOLLUSCS THAT HAVE A CLOSED CIRCULATORY SYSTEM?
    SQUID AND OCTOPUS
  69. DO MOST MULLUSCA HAVE A OPEN CIRCULATORY SYSTEM?
    • YES.
    • SQUID & OCTOPUS ARE CLOSED SYSTEM.
  70. IN THE MOLLUSCS THE Mantle or ----- is a sheath of skin surrounding

    soft parts of the animal.
    pallium
  71. IN MOLLUSCS HOW IS THE Mantle or pallium FORMED?
    It is formed by outgrowths of the dorsal body wall
  72. T OR F?
    IN MOLLUSCS The mantle is equipped with sensory receptors for sampling

    water.
    TRUE
  73. IN MOLLUSCS DOES THE MANTLE FUNCTIONS IN GAS EXCHANGE?
    YES
  74. IN MOLLSCS, WHERE ARE THE RESPIRATORY ORGANS?
    MANTLE CAVITY
  75. IN MOLLUSCS, GIVE 4 DETAILS ABOUT THE MANTLE CAVITY.
    • Continual water currents bring in food, oxygen, flushes out waste, carries reproductive products out into the environment
    • Houses respiratory organs (gills or lungs) which develop from mantle
    • Mantle and mantle cavity provide jet propulsion for locomotion in squids and octopus

    • Withdraw head and foot into mantle cavity which is protected by shell
  76. IN MOLLUSCS WHAT IS THE MAIN ORGAN FOR EXCRETION?
    Metanephridia = type of nephridium which opens into the coelom
  77. IN MOLLUSCS, WHAT REGION IS THE RESPIRATION AND CIRCULATORY SYSTEMS LOCATED?
    DORSAL VISCERAL MASS
  78. IN MOLLUSCS, Several pairs of ganglia with

    connecting nerve cord ARE KNOWN AS?
    NERVOUS SYSTEM
  79. Many mollusks have free-swimming larvae
    called --------- that emerge from eggs.
    trochophores
  80. THE REPRODUCTION OF MOLLUSCS.
    WHAT TYPE?
    • Most are dioecious;
    • some are hermaphroditic
  81. THE LARGEST AND MOST SUCCESSFUL CLASS OF MOLLUSCS
    Gastropoda
  82. Snails,slugs, conchs
    WHAT CLASS?
    Gastropoda
  83. WHAT CLASS IS THE ONLY MULLUSKS TO SHOW TORSION?
    Gastropoda
  84. Class: Gastropoda
    SYMMETRY
    • Basically bilaterally symmetrical but due to torsion
    • (a twisting process that occurs in the veliger (larval) stage) the visceral mass becomes asymmetrical.
  85. IN THE Class Gastropoda, Torsion moves the mantle cavity from
    ---- TO ------
    posterior to anterior
  86. DO CEPHALOPODS AND SOME SNAILS HAVE FREE SWIMMING LARVAE?
    • NO.
    • Cephalopods, some snails, and some bivalves have no

    free-swimming larvae, instead the juveniles hatch from eggs
  87. Class: Gastropoda, WHAT DO THE LITTLE GUYS EAT?
    • herbivores (algae), scavengers, carnivores; use radula, for most feeding styles, as a drill or
    • harpoon
  88. Class: Gastropoda Excretory system?
    single kidney (nephridium)
  89. Class: Gastropoda Respiration.
    • gills (ctenidium) in water forms,
    • gills are located in the mantle cavity;
    • lungs in land forms (pulmonates)
  90. Class: Gastropoda REPRODUCTION
    • dioecious and monoecious forms
    • Some gastropods have a primitive form of reproduction –discharge sperm and ova into sea water where fertilization occurs

    Most gastropods have an advanced form of reproduction with internal fertilization
  91. NAME 4 SENSE ORGANS OF THE Class: Gastropoda.
    • eyes,
    • statocysts,
    • tactile organs,
    • chemoreceptors
  92. Mussels,clams, scallops, oysters, shipworms
    WHAT CLASS?
    Class: Pelecypoda or Bivalvia
  93. IN Class: Pelecypoda NAME THE HINGE PARTS.
    • Hinge ligament causes shell to open
    • Adductor muscle causes shell to close
  94. WHAT OYSTER DO JAPANESE USE FOR THEIR PEARL CULTURE?
    • Meleagrina is an oyster used by Japanese
    • for their pearl culture
  95. A PEARL IS ACTUALLY AN IRRITANT TO THE OYSTER,
    WHAT IS SECRETED AROUND IT IN THE OYSTER?
    Nacre is secreted around irritant
  96. Class: Pelecypoda OLDEST PART OF THE SHELL IS CALLED?
    • The umbo is the oldest part of the shell
    • Grows in concentric circles
  97. Class: Pelecypoda HOW IS THE FOOT ATTACHED TO THE VISCERAL MASS?
    anteroventrally
  98. Class: Pelecypoda WATER EXITS THE SHELL HERE.
    Excurrent aperture or siphon (dorsal)
  99. Class: Pelecypoda WATER ENTERS THE SHELL HERE.
    • Incurrent aperture or siphon (ventral) - water enters here by
    • way of ciliary action – brings food and oxygen in
  100. IN Class: Pelecypoda WHAT 2 ORGANS ARE INVOLVED IN GAS EXCHANGE?
    Gills and mantle are involved in gas exchange
  101. Class: Pelecypoda DIET?
    FILTERFEEDERS
  102. Class: Pelecypoda SEXUALLITY?
    • Reproduction usually dioecious
    • Marine bivalves – external fertilization



    Freshwater clams – internal fertilization
  103. T OR F
    Class: Pelecypoda HAVE A 3 CHAMBERED HEART?
    TRUE
  104. WHAT CLASS IS KNOWN AS "HEAD-FOOTED"?
    Class: Cephalopoda
  105. WHO IS THE MOST ADVANCED CLASS IN THE MOLLUSCS?
    Class: Cephalopoda
  106. Squid,octopus, nautilus, cuttlefish
    WHAT CLASS?
    Class: Cephalopoda
  107. Class: Pelecypoda
    DESCRIBE THE STEPS ON LOCOMOTION
    • Muscular foot is attached anteroventrally to the visceral mass
    • Foot extends between valves (shells)




    • Blood swells the end of the foot
    • Foot acts as an anchor




    • Muscles contract
    • The contraction pulls animal forward
  108. Class: Cephalopoda
    DIET?
    PREDATORS
  109. Class: Cephalopoda
    DO THEY HAVE SHELLS?
    Shell may be reduced in size, nonexistent, or internal as in the squid
  110. Class: Cephalopoda
    ------- region of --------
    forms a ring of tentacles
    • Anterior
    • head
  111. Class: Cephalopoda
    Nautilus
    ---- pair of gills, tentacles
    2
  112. Class: Cephalopoda
    Octopus
    --- pair of gills,----- arms,
    no tentacles
    1 pair of gills, 8 arms,no tentacles
  113. Class: Cephalopoda
    Squid
    -----pair of gills, ---- arms, ---tentacles
    1 pair of gills, 8 arms, 2 tentacles
  114. THE SHELL OF A SQUID IS CALLED?
    PEN
  115. DOES OCTOPUS HAVE A SHELL?
    NO
  116. DESCRIBE THE SHELL OF A NAUTILUS
    • gas chambers for buoyancy so animal can carry its shell
    • Shell is divided into chambers by transverse septa
    • When animal grows it moves forward and secretes a new chamber behind it
    • Animal lives in the last chamber
  117. Brain of ganglia coordinated by many nerve cells – largest
    brain of any invertebrates; have giant nerve fibers.
    WHAT CLASS?
    Cephalopoda
  118. Eye: forms images; similar to vertebrate eye e.g., cornea,
    lens, retina.
    WHAT CLASS?
    Cephalopoda
  119. CAN Octopi can discriminate shapes -
    not colors?
    TRUE
  120. Communicate by visual signals
    (movement of arms, fins, body) or by color changes due to the chromatophores - the cells in the skin that
    contain pigment granules; protective coloring under nervous and hormonal
    control.
    WHAT CLASS?
    Class: Cephalopoda
  121. WHAT THE HELL ARE chromatophores?
    cells in the skin that contain pigment granules; protective coloring under nervous and hormonal control
  122. DO MOST CEPHALOPODS, EXECPT THE NAUTILOIDS, HAVE INK GLANDS?
    YES.
  123. Class: Cephalopoda
    SEXUALITY?
    Dioecious. Male plucks a spermatophore (contains sperm) from own body


    and inserts it into the mantle cavity of the female, near oviduct opening.
  124. Class: Cephalopoda

    Circulatory system?
    Circulatory system: closed with heart, blood vessels, and capillaries



  125. WHATS BETTER? OPEN OR CLOSED CIRCULATORY SYSTEM?
    • Closed system is more efficient than the open circulatorysystem of other mollusks
    • Provides more efficient movement of oxygen throughout theirlarge and active bodies
  126. NAME TWO LINES OF EARLY DEVELOPMENT OF BILATERAL ANIMALS.
    Protostomes and Deuterostomes.
  127. DEFINE Protostomes.
    • Embryonic blastopore develops
    • into the mouth Anus forms secondarily
    • Platyhelminthes are acoelomate protostomes.
  128. IS THE Platyhelminthes acoelomate protostomes?
    YES
  129. DEFINE Deuterostomes
    • Anus develops from the blastopore
    • 2nd opening forms later in development gives rise to the mouth.

  130. DEFINE CEPHALIZATION IN FLATWORMS.
    • centralization of nerves
    • (a pair of cerebral ganglia) at the anterior end of the animal
  131. HOW ARE HUMANS INFECTED BY LUNG FLUKES?
    • Humans are infected by eating poorly cooked crabs or by
    • drinking water containing larvae freed from dead crabs.
  132. THE LARVAL STAGES OF A FLUKE ARE KNOWN AS?
    • Sporocyst: A larval stage in life cycle of flukes; it originates from a miracidium.
    • Rediae: (ree-dee-uh) A larval stage in life cycle of flukes; it is produced by a sporocyst larva, and in turn gives rise to many cercariae.
    • Cercariae: (ser-kair-ee-uh) tadpolelike larvae of trematodes (flukes)
  133. FLUKE ARE PART OF WHAT CLASS?
    Class: Trematoda
  134. WHO'S CYCLE?
    FLUKE
  135. The chain of proglottids is called a......
    strobila
  136. NAME THE 3 STRUCTURES ON A TAPEWORM
    • IMMATURE PROGLOTTID
    • MATURE " "
    • GRAVID " "
  137. HOW ARE THE GRAVID PROGLOTTID RELEASED IN HUMANS?
    • Ripe proglottids detach in the human intestine, leave the
    • body in feces, crawl onto grass and are ingested by cattle.
  138. DESCRIBE THE EVO OF THE COELOM
  139. WHAT IS THE MUSCLE LAY OUT OF A NEMATODE?
    Muscles in body wall run longitudinally only (not laterally).
  140. DO NEMATODES HAVE A PROTONEPHRIDIA?
    No protonephridia, instead they have a canal system or gland cells opening by excretory pore
  141. Necator americanus: Human Hookworm, WHAT END FORMS THE HOOK?
    Anterior end curves dorsally = hook
  142. INFECTION OF HOOK WORMS WILL CAUSE THIS CONDITION
    anemia
  143. THIS NEMATODE CAN BE FOUND IN ANY PART OF THE HUMAN BODY.
    Trichinella spiralis.


    • Adults burrow into small intestine: females produce living young
    • Juveniles penetrate blood vessels and carried throughout the body



    • Found in any tissue or body space
    • Eventually penetrate skeletal muscle cells, becoming one of the largest known intracellular parasites.
  144. Most common nematode parasite in US
    Enterobius vermicularis: Pinworms
  145. WHAT NEMATODIC WORK CAUSE THE ELEPHANT DISEASE.
    FILARIAL WORMS
  146. EAT RAW VEGGIES FROM THE GARDEN AND YOU MIGHT GET THIS
    • Ascaris lumbricoides.
    • HUMAN ROUNDWORM
  147. HUMANS BECOME INFECTED BY HOOKWORMS WHAT 2 WAYS?
    MOUTH OR SKIN
  148. WHO'S CYCLE?
    Trichinella
  149. WHO'S CYCLE?
    DA PINWORM
  150. BESIDES THE LYMPHATIC VESSELS, WHERE ELSE DOES Wuchereia bancrofti SETTLE IN THE HUMAN BODY?
    • Common places to
    • settle are the arm, legs, and scrotum.
  151. DEFINE METAMERISM?
    bodies are composed of serially repeated units
  152. NAME 3 PHYLA THAT SHOW METAMERISM
    • Annelida
    • Arthropoda
    • Chordata
  153. EARTHWORM, WHAT PHYLUM?
    ANNELIDA
  154. DESCRIBE THE "BRAIN" OF A ANNELIDAN
    • Centralization of nervous system as cerebral ganglia.
  155. ANNELIDA HAVE WHAT TYPE OF CIRCULATORY SYSTEM?
    • Closed circulatory system: muscular blood vessels and aortic arches (hearts).
  156. WHAT ARE PARAPODIA AND WHO HAS THEM?
    • side feet with bristles. ANNELIDA. MARINE WORMS.
  157. WHAT THE HELL IS A NEPHRIDOPORE?
    WHO HAS IT AND WHATS THE FUNCTION?
    • ANNELIDA. ONE PER SEGMENT.
    • Remove waste from blood and coelom; a double transport system.
  158. WHAT IS THE HIGHEST FORM OF ANIMAL THAT CAN REGENERATE?
    ANNELIDA
  159. CHITINOUS SETAE?
    WHO & FUNCTION.
    • ANNELIDA. EARTHWORM.
    • BASICALLY BRISTLES.
  160. HOW IS THE CIRCULAR GROOVES OF A EARTHWORM FORMED?
    • Segmented body – segments = metameres =somites
    • Separated by septa (where peritoneum of adjacent segments meet)
    • Provides external markings: circular grooves
    • Repetitive arrangement of organs and systems within the metameres
  161. HEAD OF AN EARTHWORM IS WHAT END?
    • PROSTOMIUM
  162. EARTHWORM CRAWL BY DOING WHAT?
    • crawling motions are produced by PERISTALTIC waves of contraction by longitudinal and
    • circular muscles passing down the body PUSHING THE ANTERIOR END FORWARD.
  163. EARTHWORM, WHAT CLASS?
    OLIGOCHAETA
  164. IN EARTHWORMS EACH SEGMENT BEARS HOW MANY CHITINOUS SETAE?
    4 PAIRS
  165. WHAT ARE TYPHOSOLE AND WHO HAS THEM?
    DORSAL FOLDS WITHIN THE INTESTINES OF EARTHWORMS.
  166. CLAM WORMS BELONG TO WHAT PHYLUM AND CLASS?
    • Phylum : Annelida
    • Class: Polychaeta
  167. LARGEST CLASS OF THE PHYLUM ANNELIDA
    Class: Polychaeta
  168. DEFINE POLYCHAETA
    MANY LONG HAIRS
  169. DOES THE Class Polychaeta HAVE PERMANENT SEX ORGANS?
    • No permanent sex organs
    • Separate sexes

    • Simple reproductive system: external fertilization.
  170. Phylum : Annelida
    Class: Polychaeta
    REPRODUCTION?
    • Reproductive systems are simple:
    • Gonads appear during the breeding season as temporary swellings of the peritoneum and shed their gametes into the coelom.
    • Fertilization is external and the early larva is a trochophore.
  171. Phylum : Annelida
    Class: Polychaeta
    the early larva is CALLED WHAT?
    trochophore.
  172. Class: Polychaeta
    WHAT PHYLUM?
    Phylum : Annelida
  173. Phylum : Annelida
    Class: Polychaeta
    NAME THE 2 SUBCLASSES
    Errantia: e.g. clamworm

    Sedentaria: sedentary :Tubeworms

  174. TUBEWORMS
    PHYLUM
    CLASS
    SUBCLASS
    • Phylum : Annelida
    • Class: Polychaeta
    • SUBCLASS: Sedentaria
  175. DEFINE ERRANTIA
    WHAT PHYLUM AND CLASS DOES IT PERTAIN TO?
    • Phylum : Annelida
    • Class: Polychaeta
    • FREE SWIMING
    • JAWS
  176. DEFINE SEDENTARIA
    WHAT PHYLUM AND CLASS DOES IT PERTAIN TO?
    • Phylum : Annelida
    • Class: Polychaeta
    • sedentary

    Secrete tubes and attach to rocks
  177. FUNCTION OF A STATOCYSTS IN POLYCHAETA.
    Statocysts for maintaining position of body.
  178. WHAT SENSE ORGAN IN THE POLYCHAETA
    IS MORE DEVELOPED THEN THAT OF THE Oligochaeta?
    EYES
  179. WHAT THE HELL ARE NUCHAL ORGANS AND WHO HAS THEM?
    • Nuchal organs: ciliated sensory pits or slits
    • Appear to be chemoreceptive

    Class: Polychaeta
  180. NAME THE CLASSES OF PHYLUM ANNELIDA.
    • POLYCHAETA
    • OLIGOCHAETA
    • HIRUDINDA
  181. WHAT CLASS ADD K AND P TO SOIL?
    Class: Oligochaeta
  182. BASICALLY WORM LIPS ARE CALLED
    prostomium
  183. WHAT SUBCLASS DOES A CHRISTMAS TREE WORM BELONG TO?
    • Phylum : Annelida
    • Class: Polychaeta
    • SUBCLASS: SEDENTARIA
  184. FLASHBACK...WHAT DIGESTIVE ENZYME BREAKS DOWN POLYSACCHARIDES?
    AND WHO HAS IT?
    • AMYLASE
    • EARTHWORM.
  185. WHAT DO EARTHWORMS HAVE THAT ACTS LIKE A LIVER?
    • Chloragogen tissue surrounds the intestine
    • For synthesis of glycogen and fat

    • Similar to liver function
  186. HOW DO EARTHWORM SYNTHESIS GLYCOGEN AND FATS?
    • Chloragogen tissue surrounds the intestine
    • For synthesis of glycogen and fat
    • Similar to liver function
  187. WHO HAS ELEOCYTES AND WHAT IS THE 2 FUNCTIONS OF IT?
    • EARTHWORM
    • They are found to accumulate around wounds and regenerating areas where they breakdown and release their contents into the coelom
    • They are also are involved with excretion
  188. Chloragogen cells, when full of fat, are released into the coelom and are called ----?
    • Eleocytes
    • (el’ee-a-site)
  189. EARTHWORM CLASSIFICATION
    • Phylum : Annelida
    • Class: Oligochaeta
    • (ol’i-go-keta)
  190. Phylum : Annelida
    Class: Oligochaeta
    CIRCULATION SYSTEM.
    • double-transport system
    • The circulatory system and coelomic fluid, together TRANSPORT

    • Dorsal vessel = muscular & 5 pumping AORTIC ARCHES.
  191. Phylum : Annelida
    Class: Oligochaeta
    CIRCULATORY PATH OF BLOOD
    BLOOD vessels ->Dorsal vessel -> 5 pair of aortic arches -> ventral vessel which serves as the aorta and delivers blood to

    the brain and rest of the body.

  192. EARTHWORMS HAVE Paired nephridia (metanephridia)

    in each somite – except the ------ ---- ----- ---- – blood passes
    through these
    first 3 and the last 1 segments
  193. Phylum : Annelida
    Class: Oligochaeta
    METHOD OF EXCRETION
    • EARTHWORM
    • Paired nephridia (metanephridia) in each somite – except the first 3 and the last 1 segments – blood passes through these
  194. the waste of the aquatic oligochaetes IS WHAT?
    Ammonia
  195. waste of the terrestrial oligochaetes
    UREA
  196. Phylum : Annelida
    Class: Oligochaeta
    DO THEY UTILIZE DIFFUSION?
    YES. NITROGEN
  197. Phylum : Annelida
    Class: Oligochaeta
    RESPIRATION?
    • Diffusion
    • No special organs so they must stay in moist soil or in water
    • Gaseous exchange through moist skin
    • Co2 is released and O2 is picked up
    • Numerous capillaries below the cuticle aid in gas transport
  198. Phylum : Annelida
    Class: Oligochaeta
    Impulses are transmitted much faster in giant fibers than regular nerves?
    • YES.
    • so that all the segments can contract simultaneously when quick withdrawal into a burrow isnecessary to escape predators.
  199. Phylum : Annelida
    Class: Oligochaeta
    NERVOUS SYSTEM?
    • Consists of a central system (1pr of cerebral ganglia) and 1 pair of peripheral nerves or connectives
    • Most annelids have 1 to several giant axons in the ventral nerve cord for rapid escape
    • Giant axons allow for simultaneous contractions of muscles in many segments
  200. WHO'S NERVOUS SYSTEM Consists of a central system (1pr of cerebral ganglia) and 1 pair of peripheral nerves or connectives.
    Most have 1 to several giant axons in the ventral nerve cord for rapid escape.
    AND Giant axons allow for simultaneous contractions of muscles in many segments?
    • Phylum : Annelida
    • Class: Oligochaeta
    • EARTHWORM
  201. WHAT IS THE Prostomium PART OF AN EARTHWORM?
    • first body segment in annelid worms. It is in front of (but does not include) the mouth, being usually a small shelf- or lip-like extension over the dorsal side of the mouth.
  202. Phylum : Annelida
    Class: Oligochaeta
    REPRODUCTION?
    • Monoecious (hermaphrodites)
    • Practice cross-fertilization
    • Reproductive systems are found in somites 9 to 15
    • Female genital pore is in somite #14
    • Male genital pore is in #15
  203. Female genital pore IN A EARHTWORM is in somite #
    14
  204. Male genital pore OF EARTHWORM is in # ?
    15
  205. LEECHES CLASSIFICATION?
    • Phylum : Annelida
    • Class: Hirudinea
  206. Phylum : Annelida
    Class: Hirudinea
    SEXUALLITY
    leeches.

    Hermaphroditic; clitellum is only present during the breeding season.
  207. T OR F
    LEECHES HAVE SUCKERS ON EACH END OF BODY.
    TRUE
  208. Phylum : Annelida
    Class: Hirudinea
    HABITAT?
    • leeches. occur predominately in freshwater habitats, but a few are marine and some have adapted to terrestrial life in warm, most places.
    • more abundant in tropical countries than in temperate zones.
  209. WHAT SUBCLASS OF POLYCHAETA ARE FREE SWIMMING?
    SUBCLASS: ERRANTIA
  210. WHERE DOES THE COCOON FORM AFTER SEX ON AN EARTHWORM?
    CLITELLIUM
  211. The most important resemblance BETWEEN annelid and arthropod body structure.
    metameric plan
  212. Annelids share with the arthropods
    TWO THING. NAME THEM.
    • an outer secreted cuticle
    • a similar nervous system
  213. NAME A Lateral appendages of marine annelids.
    parapodia.
  214. WHERE DO ADULT HOOK WORMS DEVELOP, MATE AND PRODUCE EGGS?
    HUMAN SMALL INTESTINES.
  215. HOW TO YOU BECOME INFECTED WITH TRICHINELLA?
    INGESTION OF UNDERCOOKED MEAT, PORK.
  216. WHAT NEMATODA Cause allergic reactions, intestinal blockage, peritonitis if intestine is perforated?
    HUMAN ROUNDWORM
  217. NEMATODE SENSE ORGAN, DENDRITIC PROCESS, IS LOCATED WHERE?
    • AMPHIDIAL PORE
  218. THE HYPODERMIS IS ALSO KNOW AS WHAT IN THE NEMATOES?
    • MUSCLE WALL.
  219. BEEF TAPEWORM. HOW OFTEN ARE THE GRAVID PROGLOTTID RELEASED ?
    DAILY. EVEN CRAWL OUT.
  220. HOW DOES THE Mature Proglottid HAVE A GROOVED APPEARANCE?
    Muscle weakening causes grooved appearance
  221. AFTER EATING A FISH INFECTED WITH FLUKE,
    IT GOES TO THE INTESTINES AND THEN WHERE DOES IT GO?
    SWIMS UP THE BILE DUCT WHERE THEY MATE.

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