Explanation:
A thermos flask has double walls, which are evacuated and the vacuum bottle is silvered on the inside. The vacuum between the two walls prevents heat being transferred from the inside to the outside by conduction and convection.
Tubal tonsil is located posterior to the opening of the <span>Eustachian tube on the
lateral wall of the region known as nasopharynx, where it protects the <span>passage from the pharynx to the middle ear.
</span></span>It is located very near to the torus
tabarius, this is the reason why this structure is often referred to as “Tonsil
of torus tubarius”
<u>Answer:</u>
Neutrophils: produce antibodies
Explanation:
Antibodies are produced by the lymphocytes which fight against foreign substances called antigens. Antibodies bind with antigens, inactivate them and stop them for spreading in the body.
Neutrophils are the phagocytes which ingest bacteria and other foreign particles. They have granules that release special enzymes to fight and digest bacteria. They quickly accumulate at the site of infection and are important to fight against pathogens.
