Question

Which of the following statements is FALSE? a) Many animals then consume plants and fungi to get nitrogen to use where the excess is excreted in the form of urea or amonia;b) Lightning and ultraviolet light can also fix small amounts of nitrogen from the atmosphere;c) The Nitrogen Cycle is mostly removed from the atmosphere by soil microorganisms such as bacteria and protists via nitrogen fixation to create nitrogen compounds such as ammonium, nitrites, nitrates for plants and fungi to use in order to produce proteins and other important chemicals;d) Nitrogen-rich compounds in dead organisms are returned to the environment by decomposers which will either be reused by soil microorganisms for plants and fungi or be returned to the atmosphere via denitrification by soil microorganisms;e) Human activities such as fertilizers and power generation have negatively effected the sustainability of the nitrogen cycle.

Answer 1

The Nitrogen Cycle is the cycle responsible for the different relations between nitrogen and the organisms or the environment. While it envolves the processes of nitrogen fixation and denitrification, fungi are related to releasing ammonia from dead plants and animals in the soil (a type of denitrification), but they're not consumed in order to get nitrogen. Lightning and ultraviolet can fix small amounts of nitrogen and there are several of human activities are negatively affecting the Cycle. Therefore, the correct answer is a) Many animals then consume plants and fungi to get nitrogen to use where the excess is excreted in the form of urea or amonia, because fungi are not involved in this process.