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Microbiology › ViewWhich genus is resident biota of the mouth, large intestine, and within the vagina from puberty to menopause?
A. Haemophilus
B. Escherichia
C. Lactobacillus
D. Treponema
Transportation › View
What is described as a ‘waste product’ of blood?
A. oxygen
B. carbon dioxide
C. sucrose
D. hydrogen