#### Answer

true

#### Work Step by Step

Disjoint sets are sets with no common elements.
The set of negative integers is: $\left\{-1, -2, -3, -4, ...\right\}$.
The set of whole numbers is: $\left\{0, 1, 2, 3, 4, ...\right\}$.
Notice that the two sets have no common elements.
Thus, the given statement is true.