The biological oxygen demand is a metric to indicate the capacity of
a. autotrophs in the water.
b. microbes to oxidize organic compounds.
c. primary producers.
d. all of the above.
Answer: B
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A botanist is studying the growth rings of a redwood tree. She notices that three concentric rings are very thin compared to the surrounding growth rings. What can she deduce from the occurrence of these thin growth rings?
A. The tree developed more apical shoot meristems during that time period. B. The tree may have experienced a drought or had limited access to nutrients during that time period. C. The tree developed more secondary xylem during that time period. D. The tree had ample access to water and other resources during that time period.
The photosynthetic electron transport causes the accumulation of protons in which part of the chloroplast?
A. stroma B. internal thylakoid space C. matrix D. outer membrane
Even though a population in true Hardy-Weinberg equilibrium cannot exist, how can using the equation be useful?
What will be an ideal response?
In a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome?
a) all white-eyed male offspring b) all white-eyed female offspring c) all red-eyed offspring d) half white-eyed make offspring