In the trachea there is a layer of epithelial cells called the respiratory mucosa, which contains
specialized cells that produce mucus. These
specialized cells are called goblet cells and the
function of the mucus is to keep the trachea
moist. What is this an example of?

i don’t no. suiopgohjk

is this a question? wassup

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.