In which direction does diffusion occur?

In the practice of science, this type of reasoning is used to develop explanations.

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.

Introducing minvasive species to an ecosystem results in an increase in biodiversity is it true or false