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- #1

\begin{align}

\frac{dx}{dt} =& -ax + bxy\notag\\

\frac{dy}{dt} =& -my + nxy\notag

\end{align}

Interpret the constants a, b, m, and n in terms of the physical problem.

In the absence of cooperation, the system would be

\begin{align}

\frac{dx}{dt} =& -ax\\

\frac{dy}{dt} =& -my\notag

\end{align}

So a and m are non-negative. So a and m are the deaths proportional to the given population?

I don't know what to say about b and n though.