A tornado with 305 mile-per-hour surface winds is a class ____ on the Fujita scale
A) F1
B) F2
C) F3
D) F4
E) F5
E
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Which of the following occurs in the loop of Henle?
A. Wastes are transported from the blood into the filtrate. B. Water reabsorption occurs. C. Molecules the body wants to keep are transported into the blood. D. Blood pressure pushes fluid out of the capillaries.
What can an individual do to reduce exposure to pesticides? List at least three ways.
What will be an ideal response?
Consider the biosynthetic pathways by which fatty acids, steroids, carbohydrates and amino acids are synthesized. Which class of compounds has the greatest diversity of pathways?
A) amino acids B) fatty acids C) steroids D) carbohydrates E) All exhibit about the same number of pathways.
The minimum total fertility rate (TFR) to produce replacement population is ________.
A. 1.6 B. 1.1 C. 2.1 D. 2.6