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The fishes belong to class Pisces under vertebrates.2. In fishes, the respiratory system consists of mouth, pharynx, internal branchial apertures, branchial pouches and external branchial apertures.3. The branchial (gill) pouches are covered by mucous membrane which is thrown into folds called branchial (gill) lamellae.4. Fish keep its mouth open and lower the floor of the oral cavity. Then the water (with dissolved oxygen) enters oral cavity.5. While the mouth is closed, the floor of oral cavity is raised and the water from oral cavity flows into pharynx then into internal branchial apertures.6. The gill lamellae are now bathed with water and gaseous exchange takes place.7. Oxygen diffuses from water into the blood and 2 CO diffuses out from the blood into the water.8. Then the water flows out through external branchial apertures.9. The continuous opening and closing of mouth by a fish in water is to draw water into the oral cavity.
Q. Use of Gloves as personal protective equipment? Gloves are task specific. The different types of gloves worn in the dental office are: i) Examination gloves ii) Over o
D-glucose differs from D-galactose only in the arrangement around carbon 4. Therefore D-glucose and D-galactose are- Select one: a. enantiomers b. epimers c. mirror ima
What is Lactate Lactate is transported to the liver in the Cori cycle (lactic acid cycle) and is converted to pyruvate. Hepatic gluconeogenesis then converts lactate ba
why the study of microflora
Let us first learn about learn the points counsellor has to keep in mind for positive outcome of the counselling. The counsellor achieves the positive outcome of counselling, couns
Protein Classification Based on Shape There are three types of proteins on the basis of shape - Fibrous, Globular, Intermediate 1 . FIBROUS PROTEINS They ar
Careful palpation of the upper and lower limb pulses would make one suspect coarctation as the cause of hypertension. The lower limb pulses are weak and delayed. Confirmation ca
Q. How does poliomyelitis affect the neural transmission in the spinal cord? The poliovirus destroys and parasites spinal motor neurons causing paralysis of the muscles that de
Q. Explain the nucleolus? The nucleolus is an optically and a small dense region in the interior of the cell nucleus. It is made of ribosomic proteins and RNA (rRNA). One nucle
Vitamin a deficiency leads to a variety of disorders of the eyes and this effects the vision. Some of the disorders due to vitamin A deficiency are given below. 1) Night Blindne
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