A phospholipid has ________ fatty acids attached to glycerol, whereas a fat has ________.
A. 2; 4
B. 2; 3
C. 3; 4
D. 4; 2
E. 3; 2
Answer: B
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In birds and butterflies ____ for sex chromosome inheritance
a. males are XY and females are XX b. males are ZZ and females are ZW c. males are ZY and females are XW d. males are XX and females are XY e. males are ZW and females are ZZ
Which of these bones form the cheekbones in the skulls of mammals?
A) nasal bones B) fontanels C) palatine bones D) zygomatic bones
Which of the following could explain how 14 genes for globins, each specialized in their function (i.e., hemoglobin, myoglobin), arose in the genome?
A. misaligned crossover B. gene deletion C. gene mutation D. misaligned crossover and gene mutation E. misaligned crossover and gene deletion
TCE, a chemical contaminant at the United States
Army’s Aberdeen Proving Grounds, resulting from the improper disposal of wastes, is harmful because it can a. cause liver damage. b. damage lungs. c. affect the nervous system. d. cause coma and death. e. do all of these.