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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.
Significant proportion of starch in the normal diet A significant proportion of starch in the normal diet escapes degradation in the stomach and small intestine and is labeled
Q. Why are vaccines made of the own disease agent or of fragments of it? The goal of vaccines is to artificially induce a specific primary immune response (and the consequent f
explain five kingdoms?
Q. What amount of catalyst is obsessive in the reaction it catalyzes? Catalysts are not obsessive in the reactions they catalyze.
What are the endocrine glands involved in the menstrual cycle? What are the hormones in action? The endocrine glands that secrete hormones included in the menstrual cycle are t
Q. What is the name given to conditions in which the own immune system of the individual is the agent of diseases? What are some examples of these conditions? Diseases caused b
Calculate the osmolarity of a solution of 5% dextrose in water (dextrose = glucose, molec. Wt. = 180).
GIVE THE SHORT DETAIL OF HE BIOLOGICAL METHODS
A r se n i c Arsenic is a widely distributed environmental pollutant that gets released into the environment through industrial processes and agricultural usage. Arsenic c
Scope of zoology
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