Answer as soon as possible! 1.) list and describe the three challenges of life. 1. 2. 3. 2.) what is biology? 3) list the seven characteristics of life and give an example of each. 4) what is taxonomy? who is known as the father of taxonomy? 5) list the levels of classification from largest to smallest. 6) what is a dichotomous key? how do you use a dichotomous key? 7) list and describe the three domains of life. 1. 2. 3. 8) what are the 4 kingdoms of the domain eukarya? what is special about kingdom protista? 9) compare and contrast autotroph and heterotroph. 10.) what classifies something as an organism? 11.) how do organisms get energy? 12.) what is binomial nomenclature? 13.) what is binary fission?