The sender is.....Nucleotides. DNA is made of chemical building blocks called nucleotides.
Both of them produce mucus.
Answer:
Your answer is B.
Explanation:
Since elements can't exactly "die", the element rather breaks down in the soil below it, and is used again upon the next plant or animal.
Hope I helped :)
Answer:
Green chemistry, or sustainable chemistry, involves creation on the molecular level:
Explanation:
cholesterol in the cell membrane is to maintain stability, anchor other molecules, and keep the membrane fluid in cold temperatures.
