An epithelium is attached to the underlying surface by ________
a. gland cells
b. microvilli
c. connective tissue
d. the basement membrane
d
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Because artificial selection is controlled by a breeder, how does it compare to natural selection?
A. It usually occurs at the same pace because mutations occur at the same rate. B. It usually is less efficient because there is no competition between individuals. C. It usually is more efficient because it is controlled through breeding and not reproductive success. D. It works well, but will only be able to produce a range of phenotypes based on the initial variation seen within the initial population. E. It works equally well, because both principles use the idea of hereditary traits to pass along variation to offspring.
Which portion of the renal tubule empties directly into the collecting duct?
a. Bowman's capsule b. distal convoluted tubule c. proximal convoluted tubule d. descending loop of Henle e. ascending loop of Henle
You are studying a bacterium found in the normal intestinal flora of humans and most other mammals, and are doing an experiment to determine the optimum growth rate of this bacteria. You have inoculated five nutrient broths, and are incubating one broth at each of the following temperatures: 5oC, 25oC, 38oC, 42oC, and 55oC. At which temperature would you predict to see the optimum growth rate?
5oC 25oC 38oC 42oC 55oC
Glucose molecules are to starch as ________ are to proteins
A) oils B) amino acids C) fatty acids D) monosaccharides