Answer<u>:</u><em><u>C. Population size determines water demand</u></em>
Explanation:Population size determines water demand. Water is needed for household use, sanitaion,farming, and industrail use,so when the population increases,water demand increase.
<em>Hope this is right(-)-) </em>
<em><u>For study island</u></em>
The cell membrane is semipermeable (or selectively permeable). It is made of a phospholipid bilayer, along with other various lipids, proteins, and carbohydrates.
Answer:
d. Lysine is replaced by tryptophan (nonpolar)
Explanation:
Amino acid substitutions can have varying affects on the protein function, depending on the specific substitution and the location of the substitution.
If the substitution occurs in an important region, for example an enzyme active site, then the function of the protein could be destroyed.
Additionally, if the substitution replaces the amino acid with a highly different amino acid with different properties (eg. polarity), it could alter the structure and function of the protein.
Replacing lysine (polar) with a tryptophan (non-polar) changes the properties of the amino acid at that location, whereas the other substitutions do not.
In the near future, three of the most studied generations will converge on the workplace at the same time: Generation X, the age cohort born before the 1980s but after the Baby Boomers; Generation Y, or Millennials, typically thought of as those born between 1984 and 1996; and Generation Z, those born after 1997
