Summary: This program offers an overview of genetics and cloning as they occur both in nature and in the laboratory while addressing the ethical and social implications of genetic engineering. Genes, chromosomes, and DNA are identified, and the process of cell fertilization is demonstrated. Identical human twins are presented as an example of naturally occurring clones. The synthesis of human insulin...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007
View online at AVOD
Summary: This program investigates how the body controls its internal environment. The steady state of the Earth's biosphere is compared to that of the human body. An automated greenhouse and a computerized inventory system demonstrate how negative feedback loops use detection and response to maintain their own balanced states. The regulation of body temperature in response to extreme heat and cold is...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007
View online at AVOD
Summary: This program examines how oxygen and carbon dioxide are transported throughout the body, guided by the brain as it reacts to internal and external stimuli. The process of breathing is modeled by a swimmer, the control of breathing by the brain is analyzed, and oxygen intake by the lungs and transport by red blood cells are discussed. The complementary actions of the circulatory and respiratory...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007