The respiratory system can regulate the pH level of the bâ¦lood by the depth and rate of ventilation. By increasing the rate and depth of ventilation, the respiratory system will decrease the amount of CO2 in the blood which will decrease the amount of carbonic acid in the blood. That will increase the blood pH.
Definition of Adverb: Most often, adverbs modify verbs. When adverbs modify verbs, they describe the verb, much like an adjective modifies or describes a noun. Here are a few adverb examples. David quickly walked.
When you use the phrase every day as two words, it is usually used as an adverb. An adverb is a word that describes a verb (an action word)â¦sort of like an adjective, but used on a verb, not a noun. An adjective describes a noun: look at that red dress. An adverb describes a verb: she walked slowly.