()a scientist observes that, when the ph of the environment surrounding an enzyme is changed, the rate the enzyme catalyzes a reaction greatly decreases. which statement best describes how a change in ph can affect an enzyme? 1points a a ph change can cause the enzyme to change its shape. b a ph change can remove energy necessary to activate an enzyme. c a ph change can add new molecules to the structure of the enzyme. d a ph change can cause an enzyme to react with a different substrate.

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.

because the light is a great source of energy for the plants to survive. (i hope this )

in addition to spreading humanist ideas, erasmus has contributed to criticism of corruption in the church.