<span>It is used to develop the
tree of life and understand relationship between organisms. This study enables scientists comprehend the morphology and behaviour of organism. Its study is also
significant in medicine in understanding the evolution of diseases and hence important
in drug development. </span>
Blood is a suspension.
In a suspension, solute-like particles
of a substance are blended with a solvent-like fluid but are not dissolved. Blood
is a suspension of blood cells and platelets. It contains large particles large
enough ( to settle) for sedimentation.
Erythrocytes are cells that
transport oxygen from the lungs to the body It also removes and transports
carbon dioxide from body tissues to the lungs. The average adult has
approximately 5million cells/ul. Its production is controlled by erythropoietin. Erythropoietin
is produced by the kidneys.
Shivering occurs when the core temperature of the body begins to decrease which would threaten normal body function. Shivering is a response by the body to bring back temperature back to homeostasis. Trembling is the continual involuntary contraction of muscles. Muscle activity releases heat that warms up the body. This is the reason why we sweat during physical activities as the body sheds excess heat generated by the muscles in order to maintain the homeostatic body temperatures of 37 degrees centigrade.
