The most prevalent cause of wine spoilage is the presence of
A. sulfur dioxide.
B. carbon dioxide.
C. acetic acid bacteria.
D. ethanol.
C. acetic acid bacteria
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Tanisha and Tawanda are twins but do not look alike. They are the result of fertilization of
A) one oocyte by two sperm cells. B) two oocytes by one sperm cell. C) two oocytes by two sperm cells. D) one oogonium by one spermatogonium.
Which characteristic is NOT associated with red muscle fibers?
a. myoglobin b. fast fibers c. many blood vessels d. make up postural muscles e. large amounts of oxygen
Aquatic organisms generally require less structural support (e.g., skeletons) due to water's high
A) specific heat. B) buoyancy. C) surface tension. D) viscosity.
Enzymes that alter another protein or enzyme's activity by attaching a phosphate group are called:a
kinases. b. phosphatases. c. phosphators. d. transcription factors. e. coenzymes.