Which of the following statements is true regarding the bacteria present in the stomachs or intestines of humans?
A. Some stomach bacteria have been
associated with cancers.
B. Many intestinal bacteria aid in digestion.
C. Intestinal bacteria can produce important
vitamins.
D. Intestinal bacteria may play a role in
immune system function.
E. All of these answer options are correct.
E
You might also like to view...
In order for high level expression of the E. coli lac operon to occur, a complex of catabolite activator protein and ________ must be bound to the DNA near the promoter.
Fill in the blank(s) with the appropriate word(s).
DNA’s two major functions are to ____________________ and to carry the ____________________ information for
proteins and RNA molecules Fill in the blank(s) with the appropriate word(s).
Examine the figure above. In 2010, what set of age groups made up the largest proportion of the population of France?
A. 15-34 B. 35-64 C. 0-14 D. 65-100+
Replacement fertility rate is the:
A) average number of children that would be born to a woman over her lifetime. B) number of childbirths per one thousand people per year. C) number of children a woman must have on average to ensure that one daughter survives to reproductive age. D) fertility rate that is not high enough to replace an area's population.