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What is the approximate pH of the salivary secretion? Is it an acid or basic fluid? What are the main functions of saliva?
The saliva pH is approximately 6.8. It is therefore a slightly acid pH.
Saliva lubricates the food bolus and initiates the enzymatic extracellular digestion of food. It also works as a buffer for the mouth pH and it has an significant role of having IgA antibodies (also present in tears, colostrum, mother's milk and in the mucosae of the intestine and airways) that protect the organism against pathogens.
how many phylum does kingdom protista has?
A laboratory mouse homozygous for an RFLP marker is mated to a wild mouse that is heterozygous for that marker. One of the heterozygous individuals resulting from this cross is mat
What are the principal sources of excessive nitrate and phosphate in rivers and lakes?
How do populations of predators and prey vary in predatism? Whenever a predator population enhances at the first moment the prey population tends to decrease. At a second momen
mode of digestion in coelenterata
Winter Stratification - Thermal stratification During extremes of winter the surface layer of the lake freezes or attains a temperature close to 0° Celsius. Under these condit
Q. Of what substances is the nucleolus made? Is there a membrane around the nucleolus? Nucleolus is a region within the nucleus made of proteins and ribosomal RNA (rRNA). It is
Neck Inspect and palpate the neck for any mass, check if neck is short, and webbed which is indicative of Turner's syndrome. Palpate posteriorly along cervical spine; later
Actinobacillosis Synonym : Wooden Tongue Causative organism : Actinobacillus lignieresii Species affected : Ruminants, cattle and s
From your studies in ecology, you must be aware that most ecosystems are quite complex consisting of several habitats and that habitats in turn are composed of microhabitats. Each
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