A wilted flower placed in a vase of water for several hours became stiff and stood erect. When it was
placed in a salt solution, it wilted. From this information we can say that the cells of the flower are:a.
hypotonic to both fresh water and the salt solution.
b. hypertonic to both the fresh water and the salt solution.
c. hypertonic to fresh water but hypotonic to the salt solution.
d. hypotonic to fresh water but hypertonic to the salt solution.
e. isotonic to fresh water but hypotonic to the salt solutio
C
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________ plants are adapted to grow in water or on soil that is periodically anaerobic because of excess water
Fill in the blank(s) with correct word
Drugs that act by mimicking the normal substrate of an enzyme, thereby blocking its active site, are called ________.
A. blockers B. inhibitors C. competitive inhibitors D. noncompetitive inhibitors
Both walnut and Gingko trees lose their leaves in the fall when day length starts decreasing. Based on these observations one may conclude that many tree species will lose their leaves in the fall in response to decreasing day length. This statement is an example of:
A. inductive reasoning B. a theory C. deductive reasoning D. an experiment
Assume that a woman has a "normal" 28-day reproductive cycle. She is concerned about the times in which she may get pregnant. Her partner tells her that the only day she has to worry about in terms of getting pregnant is the day she ovulates
Explain to her why this is not the case.