What is the function of the bacterial flora that inhabit the large intestine? a) bacterial flora facilitate nutrient absorption. b) bacterial flora synthesize b-complex vitamins and some of the vitamin k needed by the liver. c)bacterial flora emulsify fats. d) bacterial flora release a bicarbonate-rich juice to neutralize chyme from the stomach.

The body is protected against harmful flu viruses by

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In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna. b) they study alleles that contain genes, which are chromosomes. c) they study chromosomes that contain genes, which are dna segments.