Relative to a pH of 6, a pH of 4 has a ________
A) 200 times higher H+ concentration
B) 100 times higher H+ concentration
C) 20 times higher H+ concentration
D) 100 times lower H+ concentration
B
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Which of the following hormones requires iodine for its formation?
A. thyroxine B. thyroid-stimulating hormone C. parathyroid hormone D. calcitonin E. All of the answer options are correct.
Which of the following terms best describes chlamydial genital infection in the United States?
A) arthropodborne disease B) epidemic disease C) pandemic disease D) sporadic disease
Which of the following statements is false?
a. The movement of water into a seed is known as imbibition. b. Water is attracted to hydrophilic proteins in the seed. c. The shoot system is the first part of a cotyledon to grow. d. A germinating seed starts aerobic respiration when the seed coat splits. e. Germination is completed once the primary root extends outside the seed.
Which kind of reproductive structure is not found within the fungi?
A. sporangia B. gametangia C. conidia D. anthers