Foul-smelling flowers may be pollinated by:
a. birds
b. beetles and flies
c. bees and bumblebees
d. wasps
e. bugs and butterflies
b
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Select all of the following that are components of the thoracic (rib) cage.
A. sternum B. thoracic vertebrae C. sacrum D. ribs E. lumbar vertebrae
During which growth phase are bacteria more susceptible to antimicrobial drugs?
A) lag phase B) log phase C) stationary phase D) death phase E) The susceptibility is the same for all phases.
Which of the following are the final by-products of glucose oxidation during aerobic cell respiration?
A. both ATP and heat only B. carbon dioxide only C. ATP, heat, and carbon dioxide D. ATP only E. heat only
A certain wastewater treatment plant uses aerobic bacteria, anaerobic bacteria, and archaebacteria during secondary treatment of sewage. Unfortunately, during a bad blizzard the aerated tanks froze, killing the microbes inside. What is likely to result?
A. Solid material will not be effectively filtered out. B. Floc will not be effectively filtered out. C. Methane production will go down. D. Floc levels will diminish.