What is production efficiency?
A. The rate of photosynthetic fixation as a function of temperature.
B. The percentage of energy assimilated by an organism that becomes new biomass.
C. The amount of energy used by organisms at every node of a food web.
D. Consumption of primary production by the second and third levels of a food web.
E. The net gain to an ecosystem based on photosynthetic production.
B. The percentage of energy assimilated by an organism that becomes new biomass.
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When a female has low levels of estrogen and progesterone, ________
A) she is ovulating B) her uterus is ready to accept an embryo C) she is pregnant D) she is menstruating
Which one of the following is a human blood type?
A) E+ B) B- C) ABO- D) Rh E) Rh+
When a noncompetitive inhibitor molecule binds to a(n) (active/allosteric/substrate) site on an enzyme, the shape of the active site changes so that the substrate molecules can no longer bind
What will be an ideal response?
During a biochemical reaction, (C3, H4, O3) is converted into carbon dioxide (CO2)and water(H20)In what cellular organelle does this biochemical reaction occur?
A nucleus B cytoplasm C mitochondria D endoplasmic reticulum