Fluidity of a membrane depends on the
a. length of the phospholipid fatty acid chains.
b. temperature.
c. number of double bonds in the fatty acid chains.
d. All of the above
Ans: d. All of the above
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The landing platform for pollen in flowering plants is the
a. filament. b. stigma. c. anther. d. style. e. ovary.
The type of tissue forming the covering around muscle fibers is:
a. epithelial tissue. b. connective tissue. c. nervous tissue. d. specialized muscle tissue. e. synovial fluid
In the process of science, which of these is tested?
A) a result B) an observation C) a hypothesis D) a control group
Which of the following statements is TRUE regarding infection with Mycoplasma pneumoniae?
A) It is extremely difficult to treat. B) The causative agent attaches to ciliated cells in the respiratory tract. C) The causative agent is a fast-growing Gram-positive bacillus. D) It causes disease which is usually severe enough to require hospitalization. E) It is diagnosed by the appearance of typical "fried-egg" colonies on agar.