Error bars on a graph indicate ____
a. places where the data is likely wrong
b. places where the researcher is unsure of her results
c. variation in results that cannot be accounted for.
d. variation in a set of data around the average
e. poor experimental technique on the part of the researcher
ANSWER: d
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The walls of the proximal convoluted tubule (select all correct choices):
A. are composed of epithelial cells with microvilli on their surfaces. B. possess numerous mitochondria. C. use facilitated diffusion to reabsorb glucose and amino acids. D. are where electrolytes are reabsorbed into the blood. E. have a brush border which increases the surface area of the tubule.
Most triploid zygotes probably arise from ____
a. incomplete meiosis I b. incomplete meiosis II c. incomplete mitosis d. nondisjunction e. dispermy
The eggs of Paragonimus mexicanus measure approximately 80 µm by 40 µm, are unembryo-nated and operculated, and have thick shells that are brownish-yellow. An individual with this infection has most likely traveled to which endemic area?
a. Japan b. Africa c. New Guinea d. South America
Which of the following terms is associated with the release of nonenveloped or complex viruses from the host cell?
A) Budding B) Exocytosis C) Lysis D) Phagocytosis E) Endocytosis