Biofilms found in nature ____
a. contain only bacteria
b. are composed of multicellular organisms
c. are most often found on liquid surfaces
d. are communities of unicellular organisms
e. contain only closely related organisms
ANSWER: d
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Lizards and snakes are living members of the ____ lineage
a. Testudines b. Archosauria c. Squamata d. Sphenodontida e. Amphibia
You’ve heard the phrase, “Feed a cold, starve a fever,” your whole life, and you’ve always considered it dubious advice at best; after all, how are you supposed to recover from any infection if you’re undernourished? After reading this module, however, you realize that one of your organs may be following a portion of this folk remedy despite your opinion. Which statement is true?
a. In response to a cold, the capillaries surrounding the stomach constrict, reducing hunger. b. In response to a cold, the pancreas produces less insulin, causing blood sugar levels to spike immediately c. In response to a fever, the liver stops releasing iron into the blood, starving certain bacteria. d. In response to a fever, the small intestine becomes more permeable to large protein molecules.
Which of the following pairings of organisms and their method of obtaining nutrients is incorrect?
A. herbivores - algae B. autotrophs - chemosynthesis C. carnivores - other animals D. detritivores - inorganic matter
Why might anthropogenic global warming be dangerous?
What will be an ideal response?