What metabolic advantage do cells have in storing the elemental sulfur byproduct from sulfide oxidation?
A) The cells avoid producing transport energy waste to secrete the sulfur.
B) The byproduct serves as an electron reserve for subsequent oxidation.
C) Sulfur decreases the intracellular acidification for non-acid-tolerant sulfide oxidizers.
D) The byproduct can be used for other biosynthetic pathways that use sulfur, such as Rieske Fe-S proteins.
Answer: B
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he logistic equation:a
models a J-shaped growth curve. b. takes into account the carrying capacity of the environment. c. predicts continued exponential growth. d. would characterize the uncontrolled growth of a population. e. models a K-shaped growth curve.
How does exponential growth appear on a graph?
A) as a straight line B) as an "S" curve C) as a "J" curve D) as a wavy line that goes up and down regularly
Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a(n) ________.
A. experimental variable B. control C. stable variable D. altered variable
Areas with low amounts of rainfall and moderate temperatures will develop a ____ biome.
A. desert B. temperate deciduous forest C. temperate grassland D. tundra