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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.
Q. Define Accuracy of Stress Echocardiography? The accuracy of stress echo tests for the detection of coronary artery disease is expressed as the sensitivity and specificity of
State what is Genetic engineering Genetically engineered plant-incorporated protectants are created by a process that utilizes several dissimilar modern scientific techniques
The technical term used for the androecium in a flower of China rose (Hibiscus rosasinensis) is: 1. Monadelphous 2. Diadelphous 3. Polyandrous 4. Polyadelphous
What are some similarities between proteins, carbohydrates, and nucleic acids?
Consider the evolution of metabolic pathways. Some biologists believe that these pathways evolved from?
Determine the Food Sources of Folate? Folate occurs naturally in foods. Although folate is found in a wide variety of foods, it is present in a relatively low density except i
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If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect? 1. The flow of blood into t
Define Absorption, Storage and Elimination of Riboflavin? Riboflavin is absorbed from the small intestine through the portal vein and is passed to all tissues via general circu
Give ditail account on regernation in invertebrates and vertabrites
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