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Organisms that live in a marine environment,have skin gills,tube feet,a coelom,and a water vascular system are classified as a(n)


A) tunicate.
B) lancelet.
C) planarian.
D) oligochaete.
E) echinoderm.

F) C) and D)
G) A) and D)

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Animals are thought to be most closely related to


A) choanoflagellates.
B) charophytes.
C) chytrids.
D) fungi.
E) amoebas.

F) A) and B)
G) None of the above

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Animals are not


A) multicellular.
B) chemoheterotrophic by absorption.
C) motile.
D) chemoheterotrophic by ingestion.
E) eukaryotic.

F) A) and E)
G) None of the above

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A(n) _____ is an individual animal that possesses both male and female sex organs.


A) cephalopod
B) acoelomate
C) deuterostome
D) larva
E) hermaphrodite

F) A) and B)
G) A) and C)

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Ascaris is considered to be a(n)


A) roundworm.
B) flatworm.
C) earthworm.
D) cnidarian.
E) arthropod.

F) D) and E)
G) C) and D)

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What is a common feature shared by both the roundworms and the arthropods?


A) gills
B) cutaneous respiration
C) exoskeleton
D) endoskeleton
E) jointed appendages

F) A) and B)
G) B) and E)

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What is the defining feature of the lophotrochozoans?


A) tentacle-like feeding structure
B) filter feeding
C) multicellularity
D) bilateral symmetry
E) exoskeleton

F) B) and E)
G) C) and D)

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Which group of organisms is it believed that animals evolved from?


A) protozoan
B) fungi
C) bacteria
D) archaea
E) sponges

F) A) and B)
G) A) and E)

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Which of these is mismatched?


A) cnidarian - nematocyst
B) planarian - ladderlike nervous system
C) sponge - collar cell
D) fluke - body cavity
E) roundworm - complete digestive tract

F) A) and E)
G) D) and E)

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Which of these is a unique characteristic of mammals?


A) hair
B) four-chambered heart
C) extraembryonic membranes
D) endothermic
E) cephalization

F) A) and D)
G) A) and B)

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Which of these is present in all fishes?


A) jaws
B) lungs
C) fleshy, bone-containing appendages
D) fins supported by bony spikes
E) vertebrae

F) C) and E)
G) D) and E)

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Which of these is not a chordate characteristic?


A) notochord
B) ventral, solid nerve cord
C) pharyngeal pouches
D) postanal tail
E) coelom

F) D) and E)
G) A) and D)

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Which is not a typical adult amphibian characteristic?


A) eyelids
B) jaws
C) jointed limbs
D) lungs
E) four-chambered heart

F) C) and E)
G) A) and B)

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Amphibians are the descendants of


A) ray-finned fishes.
B) cartilaginous fishes.
C) lobe-finned fishes.
D) hagfishes.
E) reptiles.

F) B) and D)
G) C) and D)

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In protostome development


A) the blastopore becomes the anus.
B) the coelom forms from mesodermal outpocketings of the gut.
C) there is no coelom.
D) the mouth forms from the second embryonic opening, not from the blastopore.
E) the blastopore becomes the mouth.

F) C) and D)
G) A) and B)

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Which of these is a protostome?


A) a chimpanzee
B) a planarian
C) a sea anemone
D) a sea star
E) lancelet

F) A) and D)
G) None of the above

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Which of these is mismatched?


A) tunicate - has all chordate characteristics as an adult
B) ray-finned fish - has a swim bladder
C) lamprey - lacks jaws
D) cartilaginous fish - has jaws
E) lobe-finned fish - has a lung

F) None of the above
G) A) and B)

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Which feature is used to identify the ecdysozoans?


A) shedding their exoskeleton
B) presence of an endoskeleton
C) parasitic lifestyle
D) asexual reproduction
E) adapted to aquatic habitats

F) B) and E)
G) A) and B)

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Birds are not


A) reptiles.
B) ectothermic.
C) amniotes.
D) chordates.
E) deuterostomes.

F) B) and D)
G) B) and E)

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The luna moth (Actias luna) is a large,showy moth with lovely green wings.It has no mouth and therefore cannot eat.How is it that this species continues to exist?


A) The luna moth is chemoheterotrophic by absorption, not by ingestion.
B) The luna moth is the adult stage in the life cycle; feeding occurs during the caterpillar stage.
C) The luna moth is a rare mutant; typical moths of the species Actias luna do have mouths.
D) The luna moth is the larval stage in the life cycle; it eventually becomes a caterpillar which can feed.
E) The luna moth can use its green wings for photosynthesis.

F) C) and E)
G) C) and D)

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