A small size is advantageous for marine organisms because it ________
A) increases the ability to absorb nutrients
B) increases the ability of wastes to diffuse out of the organism
C) increases the surface area to volume ratio that in turn reduces frictional resistance to sinking
D) increases thethe ability to absorb nutrients,the ability of wastes to diffuse out of the organism, and also increases the surface area to volume ratio that in turn reduces frictional resistance to sinking
D
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A skydiver jumps from a high-flying plane. As the velocity of her fall increases, the acceleration
A) increases. B) decreases. C) remains unchanged regardless of air resistance.
How would connecting iron with a wire to a piece of metal like copper, which undergoes reduction very easily, affect the rate at which the iron corrodes?
A) It would increase the rate of corrosion. B) It would decrease the rate of corrosion. C) The rate would stay the same. D) Rates are only affected by temperature. E) none of the above
What causes a tsunami? Compare the losses due to the Indonesian (2004) and Japan (2011)
earthquakes. How could the loss of life and property have been minimized? What will be an ideal response?
________ emits mainly ________ which is in the ________ portion of the electromagnetic spectrum
A) The Sun—shortwave radiation—radio wave B) Earth—longwave radiation—infrared C) Earth—longwave radiation—ultraviolet D) The Sun—longwave radiation—infrared E) Earth—shortwave radiation—visible