Osmotic pressure is to a plant cell as ____ is to a ____
a. air; balloon
b. water; water glass
c. fire; campfire
d. wind; windmill
e. dirt; vacuum cleaner
ANSWER: a
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A scientist isolates a single-celled organism from the bottom of a sulfur hot spring. When examined under the microscope, it is clear that the cell is very small and contains no nucleus. Based on this evidence alone, in what domain of life is this organism?
A. Eukarya. B. Bacteria. C. Archaea. D. Either bacteria or archaea. E. It is impossible to determine anything based on this evidence alone.
In this figure, a portion of __________ (A) that codes for a specific __________ (D) is called
a __________ (C).
a. protein; DNA; gene b. DNA; gene; protein c. gene; protein; DNA d. DNA; protein; gene
A man with type AB blood marries a woman with type O blood. How many blood types could arise in their offspring?
a. one b. three c. two d. four
Complete the equation: monosaccharide + monosaccharide ? ________ + water
A) disaccharide B) polypeptide C) polysaccharide D) fat