The starting substrate for vinegar production is ________.
A. a salt solution
B. water
C. fruit juice
D. an alcoholic solution
Answer: D
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Enterotoxigenic and enteroinvasive are terms often linked to which of the following bacterial species?
a. E. coli b. S. enteritidis c. S. sonnei d. Yersinia pestis
What percentage of the trees died after treatment A?
a. 35 percent b. 50 percent c. 65 percent d. 70 percent
Scientists believe that mitochondria may have evolved from bacteria because ____
a. they both have cristae membranes b. mitochondria have their own DNA c. their shapes and sizes are exactly the same d. both are surrounded by a cell wall e. both can live independently
What are the walls of a ureter composed of?
A. skeletal muscle, fibrous connective tissue, and cartilage B. fibrous connective tissue, cartilage, and mucous membrane C. mucous membrane and fibrous connective tissue D. mucous membrane, smooth muscle, and fibrous connective tissue E. skeletal muscle and mucous membrane