When you have waxed your car, rainfall makes very large droplets that roll around on the hood. This property of the water molecule is known as
A. turgor pressure.
B. transpiration.
C. negative pressure potential.
D. adhesion.
E. cohesion.
Answer: E
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Among flowering plants, 30% to 80% of existing species are polyploidy somewhere within their evolutionary history
A. true B. false
The lateral line system in fish is comprised of multiple ____ that allow fish to detect vibrations and water currents
a. statoliths b. neuromasts c. statocysts d. stereocilia e. cupulas
Pseudomonas species are occasional causes of
A) diarrheal disease. B) food poisoning from meat. C) food poisoning from dairy products. D) "flesh-eating" bacterial infections. E) urinary tract infections.
The model below predicts that the begging level of full offspring (F) should essentially be zero, whereas hun-gry (H) and starving (S) offspring show intermediate and high levels of begging, respectively
Under what circumstances would we expect full offspring to start begging? a. When the fitness costs of begging are higher. b. When the fitness costs of begging are lower. c. Only when the fitness costs of begging increase in a nonlinear fashion with begging level. d. Under no circumstances; the full (F) individuals are by definition at begging level zero.