Molecular studies place ____ as the sister clade of vascular plants

a. ferns
b. mosses
c. liverworts
d. hornworts
e. stone worts


ANSWER: d

Biology & Microbiology

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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

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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

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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

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A bony cartilaginous structure that surrounds and protects the brain of chordates is a

A. cranium. B. notochord. C. amnion. D. vertebra. E. jaw.

Biology & Microbiology