Which solution has the strongest concentration of hydrogen ions?
a. Coffee
b. Orange juice
c. Tears
d. Bleach
e. Milk
b
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Lakes with elevated dissolved nutrients and low water clarity are called ______.
A. lotic B. oligotrophic C. eutrophic D. adibiatic E. headwaters
The failure of chromosomes to separate during
mitosis or meiosis is called a. genetic displacement. b. trisomy. c. crossing over. d. nondisjunction. e. disjunction.
Which of the following best describes a metastable state?
A) This state is composed of the difference in activation energy of a catalyzed versus an uncatalyzed reaction. B) The metastable state is formed by transient complexes with the substrate. C) The metastable state is created by the prosthetic group of the enzyme. D) This state changes the position of the equilibrium but not the rate. E) The metastable state is a state of the substrate in which the reaction can proceed but typically requires a catalyst.
Which of the following associations between organism and nutrient source is incorrect?
A. humans - carnivores B. raccoons - omnivores C. earthworms - detritivores D. cows - herbivores E. bacteria - decomposers