1. are the basis of life Examples: Blood cells cells, cells 2. of form to work and perform a job. Examples: tissue, nervous tissue, tissue, and epithelial tissue

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

answer transpiration;

because it travels in smaller waves then all other colors, causing it to be the most visible color