_________ can protect bacteria from antibiotic treatment.

a) The cell wall
b) The cell membrane
c) The outer membrane
d) Biofilm


Answer: d) Biofilm

Biology & Microbiology

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If the diploid number of chromosomes for this cell is six, what stage is represented by this

figure?

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Ionic compounds

A. always form salts in solution. B. are hydrophobic. C. are basic in solution. D. are hydrophilic. E. are acidic in solution.

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Troponin and tropomyosin regulate:a

calcium storage and release. b. actin and myosin interactions. c. action potential transmission. d. acetylcholine storage and release. e. rate of muscle fiber division.

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An animal has a diploid chromosome number of 12. An egg cell of that animal has 5 chromosomes. The most probable explanation is

a. normal mitosis. b. normal meiosis. c. nondisjunction in meiosis I. d. nondisjunction in meiosis I or II. e. nondisjunction in mitosis.

Biology & Microbiology