If you are interested in observing a relatively simple community structure in a clear water lake, you would do well to choose diving into _____
A) an oligotrophic lake
B) a eutrophic lake
C) a relatively shallow lake
D) a nutrient-rich lake
E) a lake with consistently warm temperatures
Answer: A
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What will be an ideal response?
Imagine a planet that has a similar atmospheric pressure to Earth (760 mmHg), but different concentrations of gases in its atmosphere
On this hypothetical planet, oxygen makes up 10% of the atmosphere, nitrogen makes up 15%, and carbon dioxide makes up the remaining 75%. Based on this information, what is the partial pressure of oxygen on this new planet? A. 76 mmHg B. 114 mmHg C. 160 mmHg D. 571 mmHg E. 646 mmHg
A Barr body is an example of what?
A. Constitutive heterochromatin B. Facultative heterochromatin C. Constitutive euchromatin D. Facultative euchromatin
Chargaff showed that DNA in several species contains equal amounts guanine and ________.
A) nitrogen B) thymine C) cytosine D) adenine