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Q. Is the epithelium vascularized? How do oxygen and nutrients reach the epithelium? Why is this feature an important evolutionary acquisition?
Epithelia are not vascularized capillaries don't directly reach their cells the epithelium exchanges substances by diffusion with the connective tissue situated under it.
Since the epithelia are not vascularized minuscule scratches or skin injuries that happen all the time do not trigger bleeding and do not expose the blood to contamination from external agents this is an important protective strategy discovered by evolution.
ASPIRIN - It is acetylsalicyclic acid (C 6 H 4 (OCOCH) 3 CH 3 ). It changes in salicyclic acid in body. It is analgesic, antipyratic (fever reducing), anti inflamma
prepare a power point presantation of respiratry system
Circulatio n I n Animal Circulation is served by a fluid as blood/ lymph that circulates through the body in a regular manner, receiving & distributing materials in the wa
Q. Why is the sun the "motor" of the water cycle? The sun can be considered the motor of the water cycle for the reason that upon its energy the transformation of liquid water
Leaves give off water vapour Use two same pots of soil, one with a small plant and the other without. Cover the soil in every pot with cardboard as shown in the diagram after w
Q. Show the Inventory of the plants? A flora provides an inventory of the plants of an area and is often restricted to the vascular plants. Floras contain description of plants
Since the availability of flu vaccine is limited, who should receive any future pandemic flu vaccine?
VACUOLES Some animals cells may have one to a few small fluid filled vacuoles.. Plants cells in general possess one or a few large vacuoles. Vacuoles of animals cells
Q. What is hypercholeslerolaemia? Cholesterol: It is a natural component of foods such as mutton, pork, ham, sausages, lamb, chicken, eggs (yellow), whole milk, cheese, ice-cre
Azoles Systemic azole antifungals currently available in the US contain fluconazole (Diflucan, and others), itraconazole (Sporanox), voriconazole (Vfend) and ketoconazole (Nizo
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