If species C lives in contaminated water and acquires a low concentration mercury in its tissues, which species will be most affected by the mercury?
A) All species will be impacted equally.
B) species B
C) species C
D) species D
E) species E
Ans: E) species E
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Hemoglobin and hemocyanin _____
A) are both found within blood cells B) are both red in color C) are both freely dissolved in the plasma D) both transport oxygen E) are both found in mammals
Which compound has the highest free energy and produces the most ATP per molecule when oxidized?
A. acetyl CoA B. pyruvate C. carbon D. lactate E. glucose
An operator and transcription unit are called an operon
Indicate whether the statement is true or false.
Invasive species are introduced by humans to new geographic locations and:
A) are successful in colonizing a novel area. B) spread because they encounter none of their natural predators. C) All of the choices are correct. D) can outcompete and displace native species for biotic and abiotic resources. E) are usually considered pests by ecologists.