All of the following can be classified as organic molecules except
a. dna
b. glucose
c. polyethylene
d. hydrochloric acid

The correct answer is d. hydrochloric acid

Explanation:

The concept of organic molecule or organic compound implies that it has to contain carbon and hidrogen at least. DNA, glucose (a carbohidrate) and polyetilene contains carbon. In the case of hydrochloric acid it has no carbon and it belongs to a group of inorganic compounds called hydrides.

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.