Describe how human impact on the environment can be positive or negative

This is the interaction of two organisms where one is and the other is neither nor harmed.

Molecules like glucose and amino acids are not lipid soluble, so cannot cross the cell membrane by simple diffusion. instead, they are shuttled across by carrier proteins in the membrane from high to low concentration. does this process require energy from the cell? this is an example of what type of molecular movement?

The rate of speciation is most likely to increase when