A friend of yours visited a natural history museum that had a replica of the Archaeopteryx. She told you the characteristics of Archaeopteryx that she either noticed or read at the display. Which one did she misread?
A. Archaeopteryx had feathers, as do modern birds.
B. Archaeopteryx lacked teeth, as do modern birds.
C. Archaeopteryx had solid bones, unlike the hollow bones of modern birds.
D. Archaeopteryx had wings as do modern birds.
E. Archaeopteryx had a long tail, unlike modern birds.
B. Archaeopteryx lacked teeth, as do modern birds.
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The fluorochrome stain that can be used to detect mycobacteria is:
a. calcofluor white. b. acridine orange. c. auramine. d. immunofluorescence.
Photosynthesis utilizes __________, and the burning of fossil fuels generates __________
a. carbon dioxide; carbon dioxide b. carbon dioxide; oxygen c. oxygen; carbon dioxide d. oxygen; oxygen
The structure produced by cleavage of a human zygote is called a(n)
A) blastocyst. B) gastrula. C) blastopore. D) embryonic disk. E) chorion.
Cutting DNA with a particular restriction enzyme produces DNA fragments that can be separated by enzymes.
a. true b. false