Treponema, Borrelia, and Leptospira are all
A. spirochetes.
B. obligate parasites requiring host cells.
C. transmitted by arthropod vectors.
D. bacteria without cell walls.
E. curved rods.
Answer: A
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The decomposed, organic matter of soil is
a. sand. b. clay. c. humus. d. silt. e. loam.
Hydrolases are generally involved in ________ reactions
A) anabolic B) catabolic C) both anabolic and catabolic D) neither anabolic nor catabolic E) oxidation-reduction
Gibbs free energy is defined as ________
A. the amount of energy available to do work B. the amount of energy lost as heat C. the amount of entropy D. the amount of potential energy in a system E. spontaneous energy
Hawaii is the most southeastern of the seven largest islands and is also closest to the sea-floor spreading center from which the Pacific plate originates, which lies about 5600 km further to the southeast
Assuming equal sedimentation rates, what should be the location of the thickest sediment layer and, thus, the area with the greatest diversity of fossils above the oceanic crust? A) between the island of Hawaii and the sea-floor spreading center B) around the base of the island of Hawaii C) around the base of Kauai, the oldest of the large Hawaiian islands D) where the islands are most concentrated (highest number of islands per unit surface area)