Assuming ri, r2 are negative constants and that $1,2, and $2,1 are positive constants, what do the following equations represent? 1 dN1 = ri + $1,2N2 Ni dt 1 dN2 = r2 + 82,1N1 N2 dt a. Competition b. Predation c. Facultative mutualism d. Obligate mutualisme.
