The outermost electron ________ of an atom can interact with other atoms to form a molecule
Fill in the blank(s) with correct word
shell
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Gonorrhea and syphilis are most commonly controlled by
A. abstinence. B. antibiotics. C. boiling water. D. fluoride treatment. E. pasteurization.
Enzymes speed chemical reactions by
A. raising the temperature of the surroundings B. lowering the energy required to start a chemical reaction. C. maintaining temperature. D. supplying energy to the reaction process
Immediately after fertilization of a Drosophila egg, the zygote nucleus undergoes a series of divisions. Subsequent nuclear migration generates a(n) ________
A) zygote B) endoderm C) maternal effect D) homeodomain E) syncytial blastoderm
Which of the following statements is true?
a. The cell walls of bacteria are composed of peptidoglycan. b. Peptidoglycan is a fatty acid. c. Gram-positive bacterial walls have a relatively thin layer of d. peptidoglycan anchored to the cytoplasmic membrane by teichoic acids.