How do the underlined sentences on pages 1-2 advance the author's point of view?
They support the idea that people drink bottled
water based on quality concerns rather than on
cost or environmental concerns.
They support the idea that people should be
concerned about the effects of bottled water
production on the environment.
They show that people who do not have access to
safe water must pay for bottled water, at great cost
to the environment.
They show that people who have little regard for
the environment are willing to spend money on
high-quality bottled water.

Taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? view available hint(s)taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? the enzyme will not work on human dna.nothing should be altered.the ph should be decreased.the temperature should be raised.

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.