Which of the following statements about taxol is false?
A) About 1 gram can be obtained from a 100 year old tree.
B) It is effective in treating certain ovarian and breast cancers.
C) Taxol synthesized in the laboratory is identical to naturally obtained taxol.
D) Bone, all of the above are true.
D
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Which of the following best matches the description?Condition in which warm air is sandwiched between two layers of cold air.
A. oxides of nitrogen B. photochemical smog C. primary air pollutants D. thermal inversion E. sulfur dioxide F. radon G. particulates H. secondary air pollutants I. acid deposition J. ozone K. greenhouse effect
The region's limited continental shelves lend to great beaches for tourism
Indicate whether the statement is true or false
The drainage pattern that would develop upon a composite volcano is:
a. dendritic b. trellis c. parallel d. radial
What was the Cambrian explosion?
A. a time when many different types of creatures appeared on Earth B. a time when a meteorite collided with the center of a supercontinent, melting all the glaciers C. a meteorite impact that struck the north coast of the Yucatan Peninsula of Mexico D. a large volcano that went off in Wales, which the Romans called Cambria