Which of the following might be a result of adding a secondary consumer to the aquatic ecosystem illustrated above?
A) a decrease in the number of primary consumers
B) a decrease in the population of decomposers
C) an increase in atmospheric carbon dioxide
D) an increase in the population of scavengers
E) a decrease in the carbon sink
Answer: A
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A) -4°C. B) 0°C. C) 4°C. D) 100°C.
In the Watson–Crick model of DNA structure, the polynucleotide chains ____
a. are of unequal length b. are arranged with the bases forming the backbone of the helix c. form covalent bonds between uracil and adenine d. are oriented in the same direction e. are oriented in opposite directions
Each of the following directly regulates the Calvin cycle activity to ensure maximum efficiency except
A) stromal pH. B) Mg2+ concentration. C) chlorophyll photon absorption. D) NADPH concentration. E) ATP concentration.
A(n) ________ includes all the individuals of the same species that can potentially interact
Fill in the blank(s) with correct word