Which characteristic distinguishes humans from other primates?
a. complexity of the brain
b. walking upright
c. using tools
d. body hair
e. manual dexterity
ANSWER: a
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If you ran the same experiment as Engelmann without passing light through a prism, what would you predict?
A) The results would be the same. B) The bacteria would be relatively evenly distributed along the algal filaments. C) The number of bacteria present would decrease due to an increase in the carbon dioxide concentration. D) The number of bacteria present would increase due to an increase in the carbon dioxide concentration. E) The number of bacteria would decrease due to a decrease in the temperature of the water.
Virus receptors are often not distributed uniformly over the surface of host cells, but are instead concentrated in lipid rafts.
Answer the following statement true (T) or false (F)
Of the belemnites thought to be extinct, the Challenger Expedition discovered the living fossil genus:
a. Spirula. b. Latimeria. c. Neopilina. d. Calyptegena.
Type 2 diabetes is caused by:
a. too much insulin in the blood. b. too little insulin in the blood. c. too much glucagon in the blood. d. too little glucagon in the blood. e. receptors being insensitive to insulin.