POB SHADWICK EXAM 4 (FINAL)
CHAPTER QUESTIONS & ANSWERS
1. Which of the following is NOT a unique characteristic of all chordates at some time in
their life history?
A. a dorsal notochord
B. a ventral hollow nerve cord
C. pharyngeal pouches
D. radial symmetry
E. a postanal tail - ANSWERD
Defining characteristics of chordates are
A. segmentation, dorsal hollow nerve cord, gill arches or pharyngeal pouches.
B. dorsal hollow nerve cord, notochord, bilateral symmetry, and postanal tail.
C. bilateral symmetry, segmentation, and well-developed coelom.
D. gill arches or pharyngeal pouches, dorsal tubular nerve cord, notochord, and
postanal tail. - ANSWERD
Which of these is NOT a characteristic of a shark?
A. ability to sense electric currents in the water
B. skeleton of cartilage
C. a sucker used to attach to prey
D. ability to sense pressure of other swimming objects
E. ability to detect blood in minute amounts - ANSWERC
Sharks
A. have bone skeletons.
B. lack jaws.
C. have a keen sense of smell.
D. lack the lateral line system of bony fishes. - ANSWERC
of the following, the most recent ancestor of amphibians would be
A. hagfish.
B. coelacanth.
C. skate.
D. ray-finned fish. - ANSWERB
Which of these characteristics is NOT found in the amphibians but is developed in
reptiles?
, A. thin, moist skin
B. internal fertilization
C. aquatic larvae
D. eggs with gelatinous covering - ANSWERB
Which of these characteristics is NOT found in the amphibians but is developed in
reptiles?
A. thin, moist skin
B. internal fertilization
C. aquatic larvae
D. eggs with gelatinous covering - ANSWERB
Which of these characteristics first developed in reptiles?
A. amniotic egg
B. scales on skin
C. four-legged body
D. animals with lungs - ANSWERA
Which of the following features was NOT necessary for adaptation by reptiles to life on
land?
A. hard, horny scales
B. internal fertilization by means of a penis
C. shelled egg
D. being cold-blooded
E. well-developed lungs - ANSWERD
Mammals are different from birds in all these characteristics EXCEPT
A. having hair.
B. having mammary glands.
C. maintaining a constant body temperature.
D. having young born alive. - ANSWERC
17. Which of the following features is NOT a characteristic used to distinguish birds?
A. feathers
B. air sacs
C. body temperature that varies with environment
D. hard-shelled egg
E. four-chambered heart - ANSWERC
CHAPTER QUESTIONS & ANSWERS
1. Which of the following is NOT a unique characteristic of all chordates at some time in
their life history?
A. a dorsal notochord
B. a ventral hollow nerve cord
C. pharyngeal pouches
D. radial symmetry
E. a postanal tail - ANSWERD
Defining characteristics of chordates are
A. segmentation, dorsal hollow nerve cord, gill arches or pharyngeal pouches.
B. dorsal hollow nerve cord, notochord, bilateral symmetry, and postanal tail.
C. bilateral symmetry, segmentation, and well-developed coelom.
D. gill arches or pharyngeal pouches, dorsal tubular nerve cord, notochord, and
postanal tail. - ANSWERD
Which of these is NOT a characteristic of a shark?
A. ability to sense electric currents in the water
B. skeleton of cartilage
C. a sucker used to attach to prey
D. ability to sense pressure of other swimming objects
E. ability to detect blood in minute amounts - ANSWERC
Sharks
A. have bone skeletons.
B. lack jaws.
C. have a keen sense of smell.
D. lack the lateral line system of bony fishes. - ANSWERC
of the following, the most recent ancestor of amphibians would be
A. hagfish.
B. coelacanth.
C. skate.
D. ray-finned fish. - ANSWERB
Which of these characteristics is NOT found in the amphibians but is developed in
reptiles?
, A. thin, moist skin
B. internal fertilization
C. aquatic larvae
D. eggs with gelatinous covering - ANSWERB
Which of these characteristics is NOT found in the amphibians but is developed in
reptiles?
A. thin, moist skin
B. internal fertilization
C. aquatic larvae
D. eggs with gelatinous covering - ANSWERB
Which of these characteristics first developed in reptiles?
A. amniotic egg
B. scales on skin
C. four-legged body
D. animals with lungs - ANSWERA
Which of the following features was NOT necessary for adaptation by reptiles to life on
land?
A. hard, horny scales
B. internal fertilization by means of a penis
C. shelled egg
D. being cold-blooded
E. well-developed lungs - ANSWERD
Mammals are different from birds in all these characteristics EXCEPT
A. having hair.
B. having mammary glands.
C. maintaining a constant body temperature.
D. having young born alive. - ANSWERC
17. Which of the following features is NOT a characteristic used to distinguish birds?
A. feathers
B. air sacs
C. body temperature that varies with environment
D. hard-shelled egg
E. four-chambered heart - ANSWERC
