Biology 156 EXAM 5 QUESTIONS AND
ANSWERS
multicellular, heterotrophs, no cell walls, movement (in most) - Answer -kingdom
animalia
symmetry- radial, bilateral (cephalization, greater mobility) - Answer -symmetry
parazoa, eumetazoa - Answer -tissues in animals
sponges; lack tissues/ organs - Answer -parazoa
well-defined tissues, diploblastic, triploblastic - Answer -Eumetazoa
has ectoderm, mesoderm, endoderm - Answer -body cavity
no body cavity - Answer -acoelomates
body cavity between mesoderm/endoderm - Answer -pseudocoelomates
body cavity within mesoderm open/closed circulatory system - Answer -coelomates
mouth first from blastopore, spiral cleavage, determinate, forms directly from mesoderm
- Answer -protosomes
molting (exoskeleton) arthropods, nematodes - Answer -Ecdysozoa
Lophotrochozoa and Platyzoa - Answer -Spiralia
flat worms, no circulatory/ respiratory systems, complex reproductive system, marine,
freshwater, terrestrial planarians, parasitic flukes, tapeworms - Answer -playtzoans
trocophore (free-living larva), lophophore (harsh-shaped crown of ciliated tentacles
surrounding mouth for filter feeding) - Answer -Lophotrochozoans
anus first from blastopore; radial cleavage, indeterminate, forms indirectly from
archenteron; chordates, echinoderms - Answer -Deuterostomes
organ systems, efficient, flexible - Answer -evolution of segmentation
, no tissues, parazoa, no symmetry, complex multicellularity, dedifferentiate and
dedifferentiate (sponges) - Answer -Porifera
shaped like a vase, filter feeders, water exits through osculum, cilia for movement -
Answer -Porifera
diploblastic, eumatazoa (& all following taxa) radiate, distinct tissues, nearly all marines,
no organs, reproductive, circulatory or excretory systems, carnivores - Answer -Cnidaria
acoelomates, protostomes, spiralia, platyzoa, parasites on claw lobster mouthparts -
Answer -Phylum Cycliophora
Acoelomates, coelomates, spirilia, lophotrochozoa, complete digestive tract, ribbon or
probisucs worms, gonochoris with sexual reproduction; asexual by fragmentation;
mostly marine, few freshwater and terrestrial; rhynchocoel (fluid-filled coelomic cavity) -
Answer -Phylum Nemertea
coelomates, spiralia, lophotrochozoa, bryoxoans, "moss animals," small, colonized,
anus near mouth, secrete tiny chitinous, chamber-zoecium, asexual reproduction by
budding - Answer -Phylum Bryozoa (or Ectoprocta)v
coelomates, spiralia, lophotrochozoa, lamp shells, phoronids, valves, dorsal/ ventral -
Answer -Phylum Brachiopoda
coelomates, protostome, spiralia, lophotrochozoa,peanut worms-- presentation only -
Answer -Phylum Sipuncula
barnacles, sesslie as adults; free-swimming larvae, hermaphroditic, some have stalks -
Answer -Class Crustacea
Order Cirripedia
flies, mosquitoes, gnats - Answer -Order Diptera
true bugs, stink bugs - Answer -Order Hemiptera
grasshoppers, crickets - Answer -Order Orthoptera
dragonflies, damselflies - Answer -Order Odonata
termites - Answer -Order Isoptera
fleas - Answer -Order Siphonaptera
beetles - Answer -Order Coleoptera
ANSWERS
multicellular, heterotrophs, no cell walls, movement (in most) - Answer -kingdom
animalia
symmetry- radial, bilateral (cephalization, greater mobility) - Answer -symmetry
parazoa, eumetazoa - Answer -tissues in animals
sponges; lack tissues/ organs - Answer -parazoa
well-defined tissues, diploblastic, triploblastic - Answer -Eumetazoa
has ectoderm, mesoderm, endoderm - Answer -body cavity
no body cavity - Answer -acoelomates
body cavity between mesoderm/endoderm - Answer -pseudocoelomates
body cavity within mesoderm open/closed circulatory system - Answer -coelomates
mouth first from blastopore, spiral cleavage, determinate, forms directly from mesoderm
- Answer -protosomes
molting (exoskeleton) arthropods, nematodes - Answer -Ecdysozoa
Lophotrochozoa and Platyzoa - Answer -Spiralia
flat worms, no circulatory/ respiratory systems, complex reproductive system, marine,
freshwater, terrestrial planarians, parasitic flukes, tapeworms - Answer -playtzoans
trocophore (free-living larva), lophophore (harsh-shaped crown of ciliated tentacles
surrounding mouth for filter feeding) - Answer -Lophotrochozoans
anus first from blastopore; radial cleavage, indeterminate, forms indirectly from
archenteron; chordates, echinoderms - Answer -Deuterostomes
organ systems, efficient, flexible - Answer -evolution of segmentation
, no tissues, parazoa, no symmetry, complex multicellularity, dedifferentiate and
dedifferentiate (sponges) - Answer -Porifera
shaped like a vase, filter feeders, water exits through osculum, cilia for movement -
Answer -Porifera
diploblastic, eumatazoa (& all following taxa) radiate, distinct tissues, nearly all marines,
no organs, reproductive, circulatory or excretory systems, carnivores - Answer -Cnidaria
acoelomates, protostomes, spiralia, platyzoa, parasites on claw lobster mouthparts -
Answer -Phylum Cycliophora
Acoelomates, coelomates, spirilia, lophotrochozoa, complete digestive tract, ribbon or
probisucs worms, gonochoris with sexual reproduction; asexual by fragmentation;
mostly marine, few freshwater and terrestrial; rhynchocoel (fluid-filled coelomic cavity) -
Answer -Phylum Nemertea
coelomates, spiralia, lophotrochozoa, bryoxoans, "moss animals," small, colonized,
anus near mouth, secrete tiny chitinous, chamber-zoecium, asexual reproduction by
budding - Answer -Phylum Bryozoa (or Ectoprocta)v
coelomates, spiralia, lophotrochozoa, lamp shells, phoronids, valves, dorsal/ ventral -
Answer -Phylum Brachiopoda
coelomates, protostome, spiralia, lophotrochozoa,peanut worms-- presentation only -
Answer -Phylum Sipuncula
barnacles, sesslie as adults; free-swimming larvae, hermaphroditic, some have stalks -
Answer -Class Crustacea
Order Cirripedia
flies, mosquitoes, gnats - Answer -Order Diptera
true bugs, stink bugs - Answer -Order Hemiptera
grasshoppers, crickets - Answer -Order Orthoptera
dragonflies, damselflies - Answer -Order Odonata
termites - Answer -Order Isoptera
fleas - Answer -Order Siphonaptera
beetles - Answer -Order Coleoptera
