Adiabatic cooling takes place when ____
a. latitudinal differences alter rainfall amounts
b. reversals of wind direction occur seasonally
c. a decrease in air temperature occurs without loss of heat energy
d. an increase in air temperature occurs without loss of heat energy
e. anytime air loses heat energy
ANSWER: c
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Suppose you explored a new planet and found a photosynthetic organism unlike any on Earth. You repeat
Engelmann's classic experiment using this new organism in place of Spirogyra and find that oxygen-dependent bacteria cluster near the green and yellow portions of the spectrum. What does this tell you?
a. The sun of this new planet emits different wavelengths of light than our own. b. This new organism is using yellow and green light to drive photosynthesis. c. This organism appears green, just like plants on Earth. d. This organism utilizes the most energy-rich photons of the spectrum. e. This new organism is using blue and red light to drive photosynthesis.
Which of the following junctions influences
the passage of ions and small molecules between cells? a. gap b. adhering c. loose d. tight e. gated
People who exercise regularly have less mitochondria than couch potatoes.
a. true b. false
Enzymes are to active sites as
A) antigenic binding sites are to antigenic determinants. B) viruses are to antigens. C) antigens are to epitopes. D) antigenic determinants are to epitopes.