Why do plants containing nitrogen-fixing bacteria in their roots need less nitrogenbased fertilizer than other

Question

a. The plants break down the bacteria as a source of nitrogen-rich nutrients.
b. The plants and bacteria work together to attract birds, which deposit nitrogen-rich droppings near the plant.
c. The bacteria convert nitrogen in the air into a form that can be taken up by the plants.
d. The bacteria kill and digest earthworms and other animals in the soil, providing excess nitrogen to the plants.

Answer 1

C. Nitrogen fixing nodules that are on the roots of some plants, namely legumes, are able to convert Nitrogen gas into ammonium NH4+ or nitrate NO3- (note, the 4 and 3 respectively are supposed to be subscript, but Yahoo! won't allow that). Ammonium and nitrate are the only forms in which plants are able to uptake and use nitrogen.

Answer 2

spectacular question. The mycorrhizae fungi performing interior the roots of flowers is a mandatory symbiotic relationship. Many plant species, which contains wheat, rely heavily on the nitrogen fixation that mycorrhizae carry out. with out this mandatory fungi, flowers does not inevitably die, however the yield of the plant may well be heavily hampered. as a result, there may well be greater suitable opposition between herbivores (somewhat ruminants). shifting up the food chain, if decrease trophic stages are scarce, the top trophic stages go through for this reason.

Answer 3

c
Just finished showning this to my class today

Answer 4

c

Answer 5

c