_______ is the specific term referring to the net movement of water across a selectively permeable membrane
Fill in the blank(s) with the appropriate word(s).
osmosis
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Based on the illustration, if a person were to have a mutation in the RAF protein, and it was unable to bind GTP, what would happen to the pathway?
a. The pathway would stop at GRB2, and SOS would not activate RAS.
b. The pathway would stop at EGRF, and no ligand binding would occur.
c. The pathway would stop at RAF, and RAF would not phosphorylate MEK.
d. The pathway would continue unimpeded.
Which of the following is the strongest
evidence for the idea that present-day eukaryotic aerobes are the descendants of the successful symbiotic association of anaerobes and aerobes? a. Mitochondria can produce ATP. b. A mitochondrion can survive indefinitely when removed from a eukaryotic cell. c. A mitochondrion has its own set of DNA molecules. d. Fossilized mitochondria are older than the oldest fossilized eukaryotes. e. All eukaryotic cells have mitochondria
Darwin pondered which of the following questions
most heavily after his return to England? a. What could explain the great numbers of species? b. Does fossil evidence support the theory of uniformity? c. Are the extinct and living armadillos the same species? d. Did Galápagos finches have a common mainland ancestor? e. Will natural selection work in England?
Symptoms of cardiovascular collapse (shock) can occur during an infection due to
a. massive #s of bacteria multiplying in the blood b. septic shock from release of endotoxins c. chemicals being released from tissue damage and inflammation d. production of interleukin-1