What is the most widespread extractive seafloor mining operation?
a. Sulfides
b. Sand and gravel
c. Salt and water
d. Manganese nodules
b
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Which of the following proteins assists during binary fission?
a. actin b. myosin c. Z disks d. FtsZ
What is the wobble hypothesis, and what implications does it have for base-pairing rules and selective pressure on codons?
What will be an ideal response?
____ have the most efficient respiratory system of any living vertebrate
a. Amphibians b. Birds c. Mammals d. Fish e. Nonavian reptiles
Genetically engineered plants _____
A) are more difficult to develop than genetically engineered animals B) include transgenic rice plants that can grow in water of high salinity C) are used in research but not yet in commercial agricultural production D) are banned throughout the world