Unformatted text preview: Name TA B. Fillrin —the-blank. (3 points each. 15 points total) .56. look like chordates as larvae but not as adults. 57. selection favors mating success while potentially sacriﬁcing reproductive success. 58. A palatable butterﬂy sharing the same color pattern as a toxic butterfly is an example of
mimicry. 59. The redundancy model of community structure is closely related to the model. 60. The 4 major threats to biodiversity are habitat destruction. overexploitation, disruption of
interaction networks and C. Matching. Indicate the correct match by writing the number in the appropriate box. (1 point each. 18 points total). . T Asteroidea ‘ IT-lolothuroide‘a ‘ l Pyphozoa J
Brachiopoda Lophotrochozoa ' slugs |> Cephalopoda _l nematodes l squids
Cnidaria Placozoa l torsion
deuterostomes j Turbellaria Trematoda _l L ﬂatworms l Porifera Edwin ella spiralis 61. have a ciliated larval stage called a trochophore 62. translates to “head foot" 63. lack a shell or have a reduced shell 64. use their siphon and jet propulsion to swim very quickly 65. bilaterally symmetrical triploblasts, not segmented pseudocoelomates. round in cross section.
their trashing motion is due to contraction of longitudinal muscles 66. much dreaded parasite of humans and other mammals; get infection from infected,
undercooked pork that contains encysted juvenile worms 6?. penis fencing Occurs in some marine members of this otherwise hermaphroditic group 58. parasitize a wide range of hosts; the blood fluke, Schrstosoma, infects 200 million people,
leading to body pains and dysentery 69, move using cilia on the ventral epidermis, gliding along a ﬁlm of mucus they secrete 70. occurs in gastroood molluscs; where the viseral mass is rotated up to 180 degrees. so that the
anus and mantle cavity are above the head in adults 71. have multiple arms radiating from a central disk; undersurfaces of the arms have tube feet 72. "vacuum cleaners of the sea“; have tube feet and lack spines 73. includes classes Catcarea. Hexactinellida. and Demospongiae 74. phylum w'rth relatively simple. diploblastlc body plan that arose 570 million years ago 75. all marine, polyp stage reduced, free-swimming medusae. includelellies. sea settles 76'. one described species. Trichoplax adhaeren: consists of a few thousand cells 77. lamp shells. solitary marine, benthic organisms; easily mistaken for molluscs 78. brachiopods, echinodem'rs. and chordates are . the blastcpore becomes the anus Total nnints this name 10 ...
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- Fall '07