Which of the following functional groups would you expect to find in aerobic iron- and sulfur-rich acidic mine drainage?
A) dissimilative iron-oxidizers
B) dissimilative iron-reducers
C) purple sulfur bacteria
D) purple sulfur bacteria and dissimilative iron-reducers
Answer: A
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The stem axis of the embryo below the cotyledons in some seedlings.
Choose the LETTER of the best match: A. hypocotyl B. endosperm C. scutellum D. radicle E. epicotyl
When the blood level of calcium rises too high, which hormone stimulates osteoblasts to deposit
calcium into bone? a. growth hormone b. thyroid hormone c. calcitonin d. thyroid hormone e. PTH
A method for sterilizing milk, called ________ treatment, uses 134°C for 1 to 2 seconds.
A. ultra high temperature B. pasteurization C. batch pasteurization D. tyndallization E. flash pasteurization
Eating peanut butter, cantaloupe, chicken products, seafood, spinach, or handling a pet turtle are all sources of infection for which of the following bacteria?
A) Campylobacter jejuni B) Shigella dysenteriae C) Salmonella enterica serotype Enteritidis D) Salmonella enterica serotype Typhi E) Esherichia coli O157:H7