Among the mammals, only some primates (including most humans) have color vision. What was the likely advantage that probably drove the evolution of primate color vision?
A. the ability to identify grains most appropriate for domestication
B. the ability to find ripe fruit
C. the ability to identify plants with medicinal value
D. the ability to prepare for winter as portended by autumn colors of leaves
E. the ability to enjoy the aesthetic value of flowers
Answer: B
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Photosynthesis and cellular respiration are examples of ____
a. catabolism b. cleavage c. anabolism d. synthesis e. metabolism
Which event occurs in the lungs?
a. Free H+ binds to hemoglobin. b. Plasma HCO3? enters erythrocytes.
c. CO2 and H2O are converted into HCO3? and H+ in the plasma. d. Carbonic anhydrase converts CO2 and H2O into HCO3? and H+ in erythrocytes. e. CO2 binds to hemoglobin.
A human population living without medical care in a developing country would probably have ____
a. a rectangle-shaped age structure diagram b. an r value < 0 c. a pyramid-shaped age structure diagram d. per capita birth and death rates consistent with those of a stage 4 society e. no density-dependent factors operating
Which country has the warmest average yearly
temperature?
a. Mexico b. Japan c. Canada d. Germany e. United States