Which of the following is NOT true of xylem?
a. conducts water up the plant
b. conducts mineral ions up the plant
c. connects with roots
d. connects with leaves
e. transports sugars
E
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During strenuous exercise, you may notice that your muscles burn. Which of the following statements best explains this phenomenon?
A) Proteins are being digested to provide energy. B) Carbon dioxide is building up in muscle and changing the pH. C) Without oxygen, pyruvate is being converted to lactic acid. D) ADP is accumulating, which produces a burning sensation. E) Pyruvic acid causes muscle pain.
The epiglottis functions during
A) yellowing B) speaking C) breathing D) swallowing
Huntington's disease is caused by a dominant allele. If one of your parents has the disease, what is the probability that you, too, will have the disease?
A) 1 B) 3/4 C) 1/2 D) 1/4 E) 0
Excerpt from Figure 14.8
The accompanying figure represents which chromosomal change?
A. Inversion B. Deletion C. Duplication D. Translocation E. Aneuploidy