A) feathers
B) air sacs
C) variable body temperature
D) hard-shelled egg
E) four-chambered heart
Correct Answer
verified
Multiple Choice
A) amniotic egg
B) scales on skin
C) four-legged body
D) skull and vertebral column
E) animals with lungs.
Correct Answer
verified
Multiple Choice
A) nails on hands and feet.
B) stereoscopic vision.
C) well-developed brain.
D) opposable thumb.
E) rapid postnatal maturation.
Correct Answer
verified
Multiple Choice
A) fish.
B) amphibian.
C) reptile.
D) bird.
E) mammal.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) Homo erectus
B) Homo habilis
C) Cro-Magnon man
D) Neandertal man
E) Homo ergaster
Correct Answer
verified
Multiple Choice
A) bipedal.
B) all birds.
C) warm-blooded (maintains a constant body temperature) .
D) cold-blooded (body temperature varies with external temperature) .
E) reptiles.
Correct Answer
verified
Multiple Choice
A) a dorsal notochord
B) a ventral hollow nerve cord
C) pharyngeal pouches
D) gill clefts
E) a post-anal tail
Correct Answer
verified
Multiple Choice
A) was a modern fish unrelated to fossil coelacanths.
B) was the "missing link" between fish and amphibians.
C) was the link between cartilage and bony fishes.
D) had changed very little and had not gone extinct.
E) had gone extinct and then evolved from other fish still present.
Correct Answer
verified
Multiple Choice
A) They do not have a notochord.
B) They have gills while other chordates have lungs.
C) They do not have jaws while all other chordates do have them.
D) The notochord of non-vertebrate chordates does not become a vertebral column.
E) Non-vertebrate chordates do not have a internal bony skeleton while all other chordates do.
Correct Answer
verified
Multiple Choice
A) amnion limbs lungs jaws vertebrae
B) limbs lungs jaws vertebrae amnion
C) lungs jaws vertebrae amnion limbs
D) vertebrae jaws lungs limbs amnion
E) vertebrae amnion limbs lungs jaws
Correct Answer
verified
Multiple Choice
A) having hair.
B) having mammary glands.
C) maintaining a constant body temperature.
D) having young born alive.
E) having a bladder.
Correct Answer
verified
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