HSC EV Biology 2nd Paper Note

HSC EV Biology 2nd Paper 8th Chapter Note. Human Physiology, Coordination, and Control. Studies have reviewed that address the problem of the variables controlled in the maintenance of body posture and generation of limb movement. Vestibulospinal and neck reflexes cancel each other in response to roll, but not in response to the pitch of the … Read more

HSC EV Biology 2nd Paper 7th Chapter Note. Human Physiology, Locomotion, and Movement of Organ. A cheetah chasing prey. In its brief hunting sprints, it is the fastest of all land animals. Animal locomotion, in ethology, is any of a variety of movements or methods that animals use to move from one place to another. … Read more

HSC EV Biology 2nd Paper 6th Chapter Note. Human Physiology, Excretory Products, and Excretion. Excretion is the process by which metabolic wastes and other non-useful materials, such as feces, are eliminated from an organism. In vertebrates, this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the … Read more

HSC EV Biology 2nd Paper 5th Chapter Note. Human Physiology, Respiratory Process, and Respiration. Breathing (or respiration, or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly by bringing in oxygen and flushing out carbon dioxide. All aerobic creatures need oxygen for … Read more

HSC EV Biology 2nd Paper 4th Chapter Note. Human Physiology, Blood and Circulation. The center of the circulatory system is the heart, which is the main pumping mechanism. The heart is made of muscle. The heart is shaped something like a cone, with a pointed bottom and around the top. It is hollow so that … Read more