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Is the epithelium vascularized? How do nutrients and oxygen reach the epithelium? Why is this feature a significant evolutionary acquisition?
Epithelia are not vascularized (capillaries do not directly reach their cells). The epithelium exchanges substances by dispersal with the connective tissue situated under it.
As the epithelia are not vascularized minuscule skin injuries or scratches that occur all the time do not trigger bleeding and do not expose the blood to contamination from external agents. This is an significant protective method discovered by evolution.
Hydrocolloids are extremely versatile and are used for many other purposes including: (a) Production of pseudoplasticity (i.e. fluidity under shear) at high temperatures to ea
Mr. Smith is a 72 year male diagnosed with hypertension. Along with hypertension, Mr. Smith has been diagnosed with right-sided heart failure. The following are his list of medic
MECHANIS M OF FERTILIZATION - The process of fertilization complete into 5 steps - 1 . APPROACH OF SPERM TO OVUM For fertilization sperm & ova interaction is
Explain the Process of dna technology Procedures involving recombinant DNA technology has been used to increase the yield of enzymes already produced by the microorganisms, e.
Ask questionLIMITATION OF ECOLOGICAL PYRAMIDS #Minimum 100 words accepted#
Q. What is the difference between metabolic acidosis and respiratory acidosis and what is the difference between metabolic alkalosis and respiratory alkalosis? Respiratory acid
Which of the following serves as a controlled variable in a negative feedback system? A. Levels of hydrogen ions in the interstitial spaces of the brainstem. B. Blood plasma
Define Important Points While Working With Autoclave? Note: Following points should be kept in mind while working with autoclave. 1. Autoclave should not be packed tightly o
what is the process called free radicals damage body molecules
Q. What are the Chronic complications of diabetes? • Atherosclerosis: Degeneration of walls of the arteries due to fatty plaques - deposition on arterial walls. Diabetics ar
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