The document describes a lab that tests physical, chemical, and microscopic characteristics of three plant species (X, Y, Z) to determine which is most closely related to Botana curus, a plant that produces the cancer-treating compound Curol. The lab includes 7 tests of plant structures, pigments, enzymes, DNA, and amino acids. Based on the results, Species Z most closely resembles Botana curus in all tests, suggesting it may be an alternative source of Curol.