If a solution contains equal amounts of hydrogen ions and hydroxide ions, the solution can be described as ________.
a. acidic
b. basic
c. neutral
d. both acidic and basic
c. neutral
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Which drug is used to treat cases of tuberculosis?
A. Vancomycin B. Isoniazid C. Synercid D. Penicillin G E. Tetracycline
Carl Woese is BEST known for discovering that ________
A) eukaryote membrane-bound organelles are descended from endosymbionts B) the oldest fossils are 3.4 billion years old C) prokaryotes comprise two very different branches: Bacteria and Archaea D) energy acting on gases and water vapor will create a "primordial soup" of organic molecules E) the last universal common ancestor (LUCA) did not have DNA-dependent RNA polymerase
Which term best describes an organism that has a minimum growth temperature of -4oC, an optimum temperature of 10oC and a maximum temperature of 24oC?
a. psycrotroph b. mesophile c. psychrophile d. thermophile e. extremophile
According to Mendel's model, because of the ________ of chromosomes during meiosis, all possible combinations of gametes will be formed in equal frequency
A) law of segregation B) law of unit factors C) the product rule D) independent assortment E) chromosomal theory of inheritance