Molecular studies place ____ as the sister clade of vascular plants
a. ferns
b. mosses
c. liverworts
d. hornworts
e. stone worts
ANSWER: d
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Suppose that a dinosaur's body was not preserved in a way that produced a fossil; however, some of its footprints made during its life were preserved. These are considered what type of fossil?
a. false b. impression c. indented d. trace e. print
Which group of fishes evolved first (in other words, is most ancient)?
A. Bony fishes B. Cartilaginous fishes C. Lobe-finned fishes D. Jawless fishes
The role of a sphincter is to
a. control the passage of materials. b. create a churning motion. c. propagate peristalsis. d. absorb excess water from feces. e. do more than one of these
A bony cartilaginous structure that surrounds and protects the brain of chordates is a
A. cranium. B. notochord. C. amnion. D. vertebra. E. jaw.