The answer is the letter B. Electrical signals.
*Our brain and body communicates with each other by sending messages in the form of electrical signals.
I think the correct answer from the choices listed above is the last option. The pollutant that <span>is transferred from soil to water by fertilizer runoff from farms and leaky septic tanks would be nitrates. This pollutant is present in fertilizers and are produced from reactions in a leaky septic tanks. Hope this answers the question.</span>
Answer:
false
proteins dont provide hormones
Nucleic acids are the building blocks of proteins so a b is rna and C is genes
