What is the main difference between a fat (triglyceride) and a phospholipid?
A. A fat has 4 fatty acids attached to glycerol, whereas a phospholipid has 3.
B. A fat has 3 fatty acids attached to glycerol, whereas a phospholipid has 4.
C. A phospholipid has 2 fatty acids attached to glycerol, whereas a fat has 3.
D. A phospholipid has 3 fatty acids attached to glycerol, whereas a fat has 2.
E. None of the above are true.
C. A phospholipid has 2 fatty acids attached to glycerol, whereas a fat has 3
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Refer to the accompanying figure. Recall that eggs from the same female were exposed to each of the eight treatments used. This aspect of the experimental design tested which of the following hypotheses?
A) The longer day lengths of summer trigger the development of twig-like caterpillars. B) Differences in air pressure, due to elevation, trigger the development of different types of caterpillars. C) Differences in diet trigger the development of different types of caterpillars. D) The differences are genetic. A female will either produce all flowerlike caterpillars or all twig-like caterpillars.
The three main forms of nitrogenous wastes found in animals are
A. ammonia, urea, and uric acid B. ammonia, urea, and uracil C. ammonia, urea, and amino acids D. uracil, urea, and uric acid E. amino acids, uracil, and uric acid
The technique that allowed Hershey and Chase to show that the bacteriophage injects a specific molecule, was to
A. apply heat to the polysaccharide of the bacterium, and then determine if protein or DNA was responsible for infection. B. tag both DNA and protein with radioactive markers, to identify which was injected into a bacterium. C. tag DNA in the virus with radioactive phosphorus, to identify if it as injected into a bacterium. D. tag protein with radioactive sulfur, to identify if it was injected into a bacterium. E. apply X-ray diffraction to detect whether protein or DNA was injected into a bacterium.
Compare and contrast the morphology of cestodes, trematodes, and nematodes.
What will be an ideal response?