Physiological protective adaptations include the poisonous properties of the lymph, blood, or skin of inedible species and the excretions from malodorous glands of bedbugs, beetles, skunks, and beavers, which frighten away enemies.
Learn why some CEO's make a $1 salary. Some CEOs of major companies like Facebook and Google only claim an annual salary of one dollar. However, some still receive significant stock options and bonuses adding to their income and existing fortunes.
According to the U.S. Bureau of Labor Statistics (BLS), chief executives earned a median annual salary of $173,320, and general and operations managers had a median annual salary of $97,270 in May 2014 (www.bls.gov).