In the Urea Agar, the agar turns pink when
A. The pH is increased
B. The pH is irrelevant
C. The pH is decreased
D. The pH did not change
Ans: A. The pH is increased
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A formal 2-part name, or binomial, combines the names of
a. a family plus a genus. b. a class plus a specific epithet. c. a genus plus a specific epithet. d. a family plus a class. e. a family plus a specific epithet.
The pressure-flow hypothesis describes
A. how carbohydrates in solution move through the phloem. B. how carbohydrates and minerals move through the xylem. C. how hormones move through the phloem. D. how carbohydrates enter the sieve tubes. E. how water and minerals move through the xylem.
If blood cells are placed in a hypertonic solution
a. the cells will shrink due to water loss by the cell. b. the cells will be unaffected since they have a cell membrane to separate them from the solution c. the cells will swell due to diffusion d. the cells will burst due to active transport
When two squash plants with disc-shaped fruit are crossed, depending on the genotype of the parents, disc, sphere, and long fruits may be seen in the offspring. This is an example of ________
A) epistasis B) heterogenous trait C) complementation D) dominant lethal E) two gene interaction with novel phenotypes