Fertilization of gametes results in a ____________
Fill in the blank(s) with the appropriate word(s).
Answer: diploid sporophyte
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Which marine ecosystem has the highest mean net primary productivity?
a. continental shelf b. estuaries c. kelp beds and reefs d. open ocean e. upwelling zones
In club fungi, each club-shaped cell initially ____
a. is a spore b. is a zygote c. contains a single nucleus d. is dikaryotic e. undergoes mitosis to produce spores
In any ecosystem, terrestrial or aquatic, what group(s) is (are) always necessary?
A) autotrophs and heterotrophs B) producers and primary consumers C) photosynthesizers D) autotrophs E) green plants
If the difference in pH across a membrane is 0.60 and the membrane potential is -0.10 V, about what percent of the Gibbs free energy change, ?G, is from the pH difference at 37 oC? (R = 8.315 J K-1 mol-1; F = 96,485 J V-1 mol-1)
A) 15% B) 27% C) 73% D) 85%