Final answer:
The interaction between two species usually does not influence all individuals within the respective populations equally.
Step-by-step explanation:
The statement that the interaction between two species usually influences all individuals within the respective populations equally is false.
Interactions between species can have different effects on individuals within the populations. For example, in a predator-prey relationship, the predator benefits from catching and consuming the prey, while the prey is harmed or killed. This is an example of predation.
There are also other types of interactions between species, such as mutualism, where both species benefit, and competition, where both species are harmed due to the shared need for resources. These interactions can have an impact on the distribution and abundance of the associating populations.