Phylogenetic tree, explain how you know if two organisms are closely related

Explanation:

In a phylogenetic tree, the relatedness of two species has a very specific meaning. Two species are more related if they have a more recent common ancestor, and less related if they have a less recent common ancestor. ... That's because, by default, the horizontal axis of the tree doesn't represent time in a direct way.

The correct answer is:  

Explanation

This system is the opposite of the sympathetic system which is a fight-to-fight response. The parasympathetic system is activated to reduce the anxiety and stress of a person. As the person is sitting, more blood circulates in the body organs than in the skeletal muscles resulting in positive psychological changes. It releases the hormones which lift the mood and cause a sense of relaxation.