Human uses of living things of genes. Basic biological research has often been done with plants. In genetics, the breeding of pea plants allowed Gregor Mendel to derive the basic laws governing inheritance, and examination of chromosomes in maize allowed Barbara McClintock to demonstrate their connection to inherited traits. The plant "Arabidopsis thaliana" is used in laboratories as a model organism to understand how genes control the growth and development of plant structures. Space stations or space colonies may one day rely on plants for life support. Vaccines have been made using animals since their discovery by Edward Jenner in the 18th century. He noted
Gregor and the Curse of the Warmbloods of the victims, he heads down to help with yet another of Bartholomew of Sandwich's prophecies. His mother, however, hates the Underland and only allows Boots and Gregor below on the condition that she comes with them. The humans' plague expert, Dr. Neveeve, explains that there is a plant called starshade growing deep in the Vineyard of Eyes which can be distilled into a cure. In the midst of the meeting, a dying bat infected with the plague inadvertently infects one of the delegates—Gregor's mother. Gregor immediately joins a group of creatures on a quest to find the starshade, as