When an owl catches and kills a mouse for food, the owl is
a) a scavenger
b) a predator
c) prey
d) a parasite
Ans: b) a predator
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Examine the flux diagrams in Figure 25.6 to address the following questions
Based on these calculations, burning fossil fuels results in [smaller / larger] inputs of atmospheric carbon than the net exchange of atmospheric carbon resulting from natural biological processes. What will be an ideal response?
What process is responsible for the maintenance of blood glucose levels by the liver?
A) diabetes B) thermoregulation C) positive feedback D) negative feedback
The hallmark characteristic of the hominids leading to humans was the development of
A. an opposable thumb. B. the ability to care for young. C. bipedalism. D. a varied diet.
Which hominin was the first to leave Africa? (hint: make sure to know why the others are important as well)
A. Neandertals B. Homo erectus C. Australopithecus afarensis D. Homo habilis