Your tears contain the enzyme lysozyme. This chemical disrupts the cell walls of gram-positive bacteria by digesting the peptidoglycan in them. This enzyme is also found in your saliva and is an example of a non-specific immune response.
Antibiotics are chemicals produced by living organisms that kill or inhibit the growth of other organisms, particularly bacteria.
Sometimes, the human emotion of joy, at an extreme level, can result in crying - these are happy tears.
Many Believe tears to be clear, because that is how they appear when someone is crying, but if they are collected into a glass vial or bottle (and there are enough tears to see the colour clearly) they are not clear at all but a cloudy white, if enough are collected to fill the bottle or vial it will not even be see through, it will be like very cloudy water, this is possible because of the salt content in tears or for other reasons altogether. but in short, tears are not clear, but cloudy white
There are several lacrimal glands and they all make tears. The tears are made in response to irritation such as smoke. The gland helps the eye to remove the irritant and dump the tears into the nose. Tears are also produced in response to emotions.
Kills could be changed to "abilities" or "cleverness" by using synonyms like "skills" or "talents." For example, "His kills on the battlefield demonstrated his abilities," or "Her kills in the competition were a testament to her cleverness."
The chemical that effectively kills fleas and their eggs is called an insecticide.
Your tears contain the enzyme lysozyme. This enzyme acts by disrupting the cell-walls of gram-positive bacteria by digesting the peptidoglycan in them, thereby preventing infection. This enzyme is also found in your saliva and is an example of a non-specific immune response.
Basic a level knowledge: Tears are a form of chemical barrier from infection. The enzyme lysozyme is found in tears which kills of some bacteria which helps prevent pathogens entering the body and causing infection. I hope this helps, I'm unsure how the enzyme kills the bacteria as I was only aware that enzymes are catalysts that lower the activation energy in a reaction. If any one knows I'll be very grateful. :) Xxx
When Samara kills someone she tears there mouth open and leaves their body there for someone else to find.
tears cleanse the eyes and provides chemical relief for sadness
A chemical that kills insects
Chemical pollution would do it.
True A+
Tears have the same basic chemical components as sweat.
germicide
it kills justin bieber haters.
it is a chemical barrier because it produces tears that are chemicals. also- for your information, skin is a physical barrier along with the nose and mucus and cilia. sebum and stomach acid are chemical. :D