Ability to grow in shade may pines found in the dry forests of arizona resist drought. how well do these pines grow in shade? investigators planted pine seedlings in a greenhouse in either full light, light reduced to 25% of normal by shade cloth, or light reduced to 5% of normal. at the end of the study, they dried the young trees and weighed them.(a) what type of study is this? match each of the following terms to the appropriate description.-abcd pine seedlings a. treatments-abcd amount of light b. explanatory variable-abcd weight c. response variable-abcd full light, light reduced to 25% of normal, light reduced to 5% of normal d. individuals