There is a genetic basis for differences in foraging behavior among fruit fly larvae. Some larvae crawl around a lot eating yeast that grows on decaying fruit. These larvae are called:
a. seekers
b. sitters
c. hunters
d. rovers
e. mobile eaters
d
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What is peristalsis?
A. a process of fat emulsification in the small intestine B. voluntary control of the rectal sphincters regulating defecation C. the transport of nutrients to the liver through the hepatic portal vein D. loss of appetite, fatigue, dehydration, and nervous disorders E. smooth muscle contractions that move food through the alimentary canal
The energy that drives the light-independent
reactions comes from
a. sunlight. b. glucose. c. carbon dioxide. d. ATP and NADPH. e. water and oxygen
The phospholipids of plasma membranes contain _____
a. a hydrophobic head and a hydrophilic tail b. two hydrophobic heads and a hydrophilic tail c. a hydrophobic head and two hydrophobic tails d. a hydrophilic head and two hydrophobic tails e. a hydrophilic head and two hydrophilic tails
Why does Dr. Johnson order a PPD for Mr. Williams?
a. He wants to confirm the diagnosis of brucellosis. b. He wants to confirm the diagnosis of Rickettsia infection. c. He wants to rule out the possibility of bovine tuberculosis. d. The PPD is a necessary component of the febrile antibodies panel.