Each of the following is an example of facilitated diffusion except
A) glucose transport by GLUT1.
B) chloride-bicarbonate exchange.
C) aquaporin transport.
D) ion channel transport.
E) oxygen transport.
Answer: E
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By examining the phylogenetic tree diagrammed in the figure above, what conclusion can you draw about the species G. microti?
A) It evolved before G. intestinalis. B) It is more closely related to G. muris than to G. intestinalis. C) It should not be labeled a species distinct from G. intestinalis. D) It is part of a monophyletic group that also includes G. intestinalis.
The smooth endoplasmic reticulum functions in synthesis of
A) lipids. B) polysaccharides. C) proteins. D) DNA. E) all of the above
A student is staring directly at a bird outside the classroom window. The image of the bird is focused at the very center of the macula, a small pit called the ________, which is lined with highly packed photoreceptors
Fill in the blank(s) with correct word
Because archaea were first found in environments that lacked oxygen or were very hot, acidic, or salty, they were nicknamed "extremophiles."
a. true b. false