The trachea has an epidermis layer that acts as a barrier and protects organs from things such as : dust, mucus and also pathogens Hope that helps :)
<span>The answer would be:
Jellies
Salt cured meats
Honey
High osmotic pressure can be used as a natural preservative. In high osmotic pressure, the microbes will hardly survive as their surrounding concentration is too high and induce severe osmosis. The osmosis will take the microbes water, makes it shrink continually lead to the microbes death.
In those 3 foods, there is a high concentration of sugar or salt that increase the osmotic pressure.</span>
If they are trying to convert any measurements or just measure out the chemicals, it wouldn't be very familiar to them so they could make a mistake that can result of too much or too little of the chemicals, which can make the chemicals react differently.
Answer:
Molecules which are capable of hydrogen bonds have hydrogen atoms which are covalently bonded to highly electronegative elements (O, N, F). The presence of hydrogen bonding between molecules of a substance indicates that the molecules are polar. This means the molecules will be soluble in a polar solvent such as water.
Explanation: