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Which organism does not posses features that identify them as an arachnid?


A) spider
B) scorpion
C) tick
D) horseshoe crab
E) lobster

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

Correct Answer

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In 2003, fossil skeletons of a new Homo species were discovered in Indonesia and named Homo floresiensis. Which factor was the key to classifying this species in the genus Homo?


A) evidence of bipedalism
B) resemblance to other hominins
C) human-like rather than ape-like craniums
D) evidence of being placental mammals
E) evidence of mosaic evolution

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

Correct Answer

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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) All of the above
G) B) and D)

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Which is the largest, most diverse group of arthropods?


A) arachnids
B) millipedes
C) insects
D) crustaceans
E) centipedes

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

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An arthropod would not have


A) a blastopore during development.
B) a pseudocoelom.
C) mesoderm.
D) jointed appendages.
E) an exoskeleton.

F) B) and E)
G) All of the above

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Which feature is present in cnidarians but lacking in sponges?


A) cellular level of organization
B) filter feeding
C) multicellularity
D) radial symmetry
E) cnidarians are classified as an animal while sponges are not animals

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

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Nephridia are found in


A) jawless fishes.
B) echinoderms.
C) lancelets.
D) annelids.
E) cephalopods.

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

Correct Answer

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Which are the most numerous and diverse vertebrates?


A) reptiles
B) lancelets
C) cartilaginous fishes
D) mammals
E) bony fishes

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

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While excavating a cave in Spain, you stumble across a skeleton that looks to be human. Upon closer examination, you find that the bones are disproportionately short and thick, and the skull has massive brow ridges. Carefully arranged around the skeleton are a variety of stone tools. You have most likely found the remains of


A) a Cro-Magnon.
B) an australopithecine.
C) an early hominin.
D) a Neandertal.
E) a prosimian.

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

Correct Answer

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Which of these is not a bivalve?


A) barnacle
B) oyster
C) clam
D) mussel
E) scallop

F) D) and E)
G) All of the above

Correct Answer

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Which of these has radial symmetry?


A) human
B) planarian
C) jellyfish
D) roundworm
E) nudibranch

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

Correct Answer

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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) C) and E)
G) A) and E)

Correct Answer

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An annelid would not


A) have a coelom.
B) have segmentation.
C) possess a complete digestive tract.
D) excrete via nephridia.
E) undergo metamorphosis.

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

Correct Answer

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Which of these worms are segmented?


A) annelids
B) planarians
C) roundworms
D) flukes
E) All worms are segmented

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

Correct Answer

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The exoskeleton of an arthropod is composed largely of the polysaccharide


A) cellulose.
B) starch.
C) chitin.
D) collagen.
E) glycogen.

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

Correct Answer

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Which of these is a primate, but not an anthropoid?


A) chimpanzee
B) baboon
C) opossum
D) human
E) lemur

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

Correct Answer

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The closest living relatives of modern humans are


A) prosimians.
B) African apes.
C) New World monkeys.
D) Asian apes.
E) Old World monkeys.

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

Correct Answer

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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) A) and B)

Correct Answer

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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) D) and E)

Correct Answer

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