About the Authors

Willard S. Robinson

wrobins@caspercollege.edu

Affiliation Biology Department, Casper College, Casper, Wyoming, United States of America

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WSR. Performed the experiments: WSR. Analyzed the data: WSR. Contributed reagents/materials/analysis tools: WSR. Wrote the paper: WSR.