The total solute concentration of a solution of water and other substances (salts, proteins, etc.) is referred to specifically as its
A. salinity.
B. density.
C. tonicity.
D. osmolarity.
E. specific gravity.
Answer: D
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If fermentation pathways follow glycolysis,
a. CO2 will be one of the products as pyruvate is converted to lactate. b. the two NADH molecules produced during glycolysis will (depending on the organism) be used to reduce pyruvate to either lactate or ethanol and CO2. c. ATP will be required to convert pyruvate to either lactate or ethanol and CO2. d. oxidative phosphorylation occurs either on the plasma membrane or on derivatives of the plasma membrane. e. none of these will occur
Which of the following is not a tool used by
animals to migrate? a. Star position. b. The Earth’s magnetic field. c. Olfactory landmarks. d. Sun position. e. All of these are used.
An animal that kills for food is a
A. predator. B. parasite. C. scavenger. D. All of these answers are true.
Match the following
5cm A) 50mm B) 5mm C) 5000mm