Difference between intraspecific mutulism and competition

How do living things obtain phosphorus

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups