the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind. 2. the study of human beings' similarity to and divergence from other animals. 3. the science of humans and their works.
Rubber Plant-Ficus Elastica. The rubber plant (ficus elastica) is another tree like species with four popular varieties. The most popular is the decora which has large green oval shaped leaves and the robusta which has larger leaves.
The most common types of Yucca plants are Yucca filamentosa, Yucca brevifolia (Joshua tree), Yucca aloifolia (Spanish bayonet) and Yucca gloriosa (Spanish dagger). The roots, leaves and fruit of yucca plants were historically used by Native Americans and continue to be used in modern times.