With regards to productivity of an ecosystem, which of the following statements is accurate?
a. GPP is greater than NPP because of the metabolic process of photosynthesis.
b. GPP is greater than NPP because of the metabolic process of respiration.
c. NPP is greater than GPP because of the metabolic process of photosynthesis.
d. NPP is greater than GPP because of the metabolic process of respiration.
e. There is no significant difference between GPP and NPP.
B
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If a certain species of bacteria is capable of reproducing quickly enough that it could cover the earth in a one foot layer in two days, why hasn't this happened?
What will be an ideal response?
Why is the surface area of a gecko's foot so extensive?
A. A gecko's foot acts like a large dipole and thus allows for ion-dipole interaction in water. B. A gecko, like all amphibians, needs extensive surface area under foot for stability on land as well as mobility in water. C. The greater the surface area, the greater the number of induced dipole-induced dipole forces of attraction that can occur between the gecko's foot and the surface. D. The extensive surface area, once charged by the gecko's body, allows for the dipole-dipole attraction of every contact surface.
The corn producing regions of Canada are most prominent in:
A) Nunavut B) Ontario C) Alberta D) New Brunswick
A Secchi disk is used to measure water ________
A) acidy B) density C) salinity D) temperature E) transparency