[听力原文]19-22 Why do we cry Can you imagine life without tears Not only do tears keep your eyes lubricated, they also contain a substance that kills certain bacteria so they can’t infect your eyes. Give up your tears, and you’ll lose this on-the-spot defense. Nobody wants to gi...
An antiseptic substance is applied to skin or tissue with the intent of neutralizing microorganisms, including bacteria, that are capable of causing infection, inflammation, or cellular decomposition. Antiseptics come in many varieties; some are able to actively act as bactericidal agents, while others...
To avoid contact with bacteria, do not crush the ticlks body or touch the tick with bare hands. Wipe the skin around the bite with an antiseptic (a substance that kills bacteria). See also Arthritis Bell's Palsy Resources Book Veggeberg, Scott. Lyme Disease. Springfield, NJ: ...
Sore-forming bacteria are destroyed by which type of method of sterilization? What are the most common symptoms of foodborne illness? a) How are fungal diseases called? b) What are the main human diseases caused by fungi? What is a substance that speeds up a chemical reaction without being ...
How does fluoride help reduce dental decay? A) Absorbs the acid that seeps down between rods of enamel. B) Mineralization of fluoride fills in the spaces between enamel rods. C) Kills the bacteria that are responsible for dental decay. D) Two of the above ...
Dental plaque (biofilm) is made up of bacteria from germs in the mouth and is the culprit of gingivitis. This sticky substance is always building up on your teeth and gums. Daily brushing and interdental cleaning can help remove plaque and stop it from harming your mouth. Otherwise, harmful...
There’s a difference between sanitizing and disinfecting. Sanitization is less thorough, but it kills bacteria quickly. It’s often associated with the food industry, because of requirements dictating that food-contact surfaces be sanitized after use. However, dispatching germs quickly is...
A substance that prevents infection by inhibiting the growth of infectious agents. Disinfectant A substance that kills germs and/or viruses. The scalpels were soaked in disinfectant before the operation so disease wouldn't be spread. Antiseptic Of, or relating to antisepsis, or the use of antisep...
Is murderess a real word? awoman who commits murder. What does murderous mean in English? 1a :having the purpose or capability of murder. b : characterized by or causing murder or bloodshed. 2 : having the ability or power to overwhelm : devastating murderous heat. ...
Not only do tears keep your eyes lubricated, they also contain a substance that kills certain bacteria so they cannot infect your eyes. Give up your tears, and you will lose this on-the-spot defense. Nobody wants to give up the flood of extra tears you produce when you get something ...