As with an iceberg, there is more to tundra plants than what you see on the surface.
Which statement below supports the analogy?
A) The waxy coating prevents evaporative water loss.
B) Low growing plants avoid the drying winds of the tundra.
C) Aerial parts are reduced in favor of the root mass in the protective soil.
D) Silver-gray hairs on leaves provide a greenhouse effect so plants stay warm.

C) Aerial parts are reduced in favor of the root mass in the protective soil.

Explanation:

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.

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