Which of the following is only partially reabsorbed in the proximal convoluted tubule?
a. glucose
b. amino acids
c. sodium ions
d. vitamins
e. nutrients
C
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The term that Darwin used to describe the concept that those with superior physical, behavior or other attributes are more likely to survive than those that are not so well endowed, and thus are more likely to pass their traits to the next generation, is called:
A. geometric progression B. natural selection C. superior beings D. survival of modifications E. biological diversity
All of the following are methods used to exchange heat with the environment except
A. evaporation. B. diffusion. C. radiation. D. conduction. E. convection.
An X-linked recessive gene (c) produces red/green color blindness. A normal woman whose father
was color blind marries a color-blind man. (a) What are the possible genotypes for the mother of the color-blind man? (b) What are the possible genotypes for the father of the color-blind man? (c) What are the chances that the first son will be color-blind? (d) What are the chances that the first daughter will be color-blind? What will be an ideal response?
In oceans, how does the vertical movement of cold water affect surface organisms?
A) by bringing nutrient-rich water to the surface B) by bringing oxygen-rich water to the surface C) by bringing waste down to the sea floor D) by increasing productivity via warmer temperatures