7.012: Introductory Biology-Fall 2004 Instructors: Professor Eric Lander, Professor Robert A. Weinberg, Dr. Claudette Gardel Big Idea 1: Biology is based on observational and experimental science. 1. We think what we think because we can draw conclusions from the results of controlled experiments. 2. An informative experiment is designed to distinguish between hypotheses
Notes LECTURE Biochemistry 9.17.04 ATP is both a unit of energy currency in a cell and a building block of RNA. Why? It is believed that early in evolution there were very few molecules around. Many key pathways are ancient, and trace their origin to the early stages of evolution of life on Earth. Incidentally, such pathways are usually highly conserved in modern organisms. This is probably because once
第四节 神经系统的感觉功能 Sensory Function of Nervous System 第五节 脑的电活动与觉醒、睡眠机制 第五节 神经系统对姿势和运动的调节 Posture & Motor Control By Nervous System 第六节 神经系统对内脏活动调节 Visceral Activity Control By Nervous System 第七节 脑的高级功能 Higher Nervous Activity of the Brain