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muscles contract. The stimulus for contraction is usually a nerve impulse that travels through the membrane of the muscle fibers, reaching the sarcoplasmic reticulum (a set of bags membranous cytoplasmic calcium where there is stored), whic...
attempts to maintain a state of homeostasis or balance to ensure the optimal operating environment for its complex chemical systems. Any change from this homeostasis is a change away from the optimal operating environment. The body attempt...
The diseases of the respiratory system can affect any part of the respi ratory tract and range from trivial to life-threatening. The nasal passages and pharynx are targets for the viruses membranes. The immune system fights back by increasi...
their leaves to reach the fall, and prepare to pass the unfavorable season in a winter resting phase. Before falling, the leaves lose their green color characteristic turns to shades ranging from yellow to deep red, through ochres and orang...
effects of malaria on the human body. Discussion Homeostasis of Normal and Healthy Human The homeostasis of normal and healthy human is discussed below: Control of Body Temperature The nude human body in normal condition can maintain a body...
Functioning of the Human Body 1. Cellular metabolism can be defined as the chemical procedure taking place within individual cell that are necessary for the preservation of life. It contains all the responses involved in degrading food mole...
cell division; mitosis and meiosis. Mitosis is where a cell will replicate its contents encompassing its genes and circulate them to two female child cells. In unicellular micro-organisms it assists to boost the allowance of persons of the ...