Which type of white blood cells secretes inflammatory chemicals?
a. monocytes
b. lymphocytes
c. basophils
d. neutrophils
e. eosinophils
ANSWER: c
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A beekeeper opens one of his hives. At first, only one bee gets under his suit and stings him. He is then swarmed by the rest of his bees, and ends up with several stings. Why did most of the hive attack him? Select all correct choices
A. Because the first bee produced alarm pheromones. B. Because the first bee produced trail pheromones. C. Because the first bee produced amine hormones. D. Because the first bee produced steroid hormones. E. Because the first bee produced paracrine signals.
Which of the following is an advantage of molecular pharming compared to expression of mammalian proteins in bacteria?
A. Mammalian and bacterial genes use different genetic codes. B. Mammals are easier to grow in the lab than bacteria. C. Molecular pharming is cheaper than growing bacteria. D. Proteins are more likely to function properly when expressed in mammals. E. Post-translational modifications do not occur in mammals.
What are the advantages of bipedalism?
A. Enables an adult to carry an offspring easier. B. Allows the hands to be free for tool use. C. Would allow the individual to spot danger further away. D. Would have allowed males to forage for food more efficiently. E. All of these are advantages of bipedalism.
Autopsy of a stillborn fetus reveals the cause of death to be meningitis. Cultures show the presence of a gram-positive rod. The likely pathogen is Haemophilus influenza
Indicate whether the statement is true or false