Chapter Questions
Which of the following is not a deuterostome? (a) echinoderm (b) chordate (c) hemichordate (d) arthropod (c) hagfish.
Which of the following belongs to subphylum Vertebrata? (a) lophophorate (b) lamprey (c) lancelet(d) tunicate (e) crinoid.
Which of the following is/are found in tunicates? (a) notochord (b) tube feet (c) anal gill slits (d) two pairs of appendages (c) vertebral column.
Which of the following was an early jawed fish? (a) placoderm (b) crinoid (c) therapsid (d) labyrinthodont (c) ostracoderm.
Arrange the following animals to reflect an accepted sequence of evolution:1. lungfish 2. reptile 3. amphibian 4. bird.(a) 3,1,2,4(b) 1,3,2,4 (c) 2,1,3,4(d) 1,2,3,4
Which of the following characteristics is not associated with sea stars? (a) tube feet (b) water vascular system (c) central disk with five or more arms (d) spiny skeleton (e) notochord.
Which of the following characteristics is associated with amphibians? (a) mantle (b) placoid scales (c) three-chambered heart (d) swim bladder (e) amnion.
Which of the following is not characteristic of birds? (a) feathers (b) ectothermic (c) amnion (d) high metabolic rate (e) reptilianlike scales on legs.
Which of the following is not true of the duck-billed platypus?(a) classified as a marsupial (b) lays eggs (c) embryo has a notochord (d) embryo has pharyngeal slits (e) is a predator
Which of the following is not a placental mammal? (a) shrew(b) human(c) dolphin(d) spiny anteater (e) bat.
Which of the following is true of mammals? (a) all have placentas (b) evolved from saurischian dinosaurs (c) three middle-ear bones (d) most are ovoviviparous (e) evolved during the Devonian period.
The vertebral column (a) is characteristic of all chordates (b) forms the skeletal axis of the chordate body (c) may consist of cartilaginous or bony segments (d) is well developed in lancelets (e) three of the preceding answers are correct.
A shark is characterized by (a) placoid scales (b) bony skeleton (c) water vascular system (d) amnion (e) muscular diaphragm.
Reptiles (a) have dry, scaly skin (b) are amniotes (c) gave rise to the birds and mammals (d) answers a, b, and c are correct (e) answers a and c only are correct.
Amniotes (a) include amphibians, reptiles, birds, and mammals. (b) are especially well adapted for fresh water (c) typically have physiological mechanisms for conserving water (d) typically excrete ammonia (e) gave rise to the amphibians.
Which of the following is not true? (a) feathers evolved in dinosaurs (b) birds are endothermic (c) birds excrete uric acid (d) birds have an amniotic egg (e) Archacopterya was the ancestor of feathered dinosaurs.