The sampling effect hypothesis is an explanation for why productivity increases when plant species diversity increases. which of these predictions follows from this hypothesis? a) productivity should be highest in the tropics, where species diversity is highest. ' b) the more mutualists are present (e. g. beneficial fungi, nitrogen-fixing plants), the higher the biomass. c) if a certain "big-producer" is present, then biomass in a plot is high. if the big producer is absent, biomass is low. d) there should be a strong positive relationship between the number of functional groups in an experimental plot and biomass.

The best answer for this question, would be the following processes:

a) Productivity should be highest in the tropics, where species diversity is highest. '

d) There should be a strong positive relationship between the number of functional groups in an experimental plot and biomass.

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.

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.