Answer:
DNA is made up of molecules called nucleotides. Nucleotides are attached together to form two long strands that spiral to create a structure called a double helix. If you think of the double helix structure as a ladder, the phosphate and sugar molecules would be the sides, while the bases would be the rungs.
Explanation:
I hope this helps:)
Answer:
sorry I don't understand your question
<span>the feeding veins (xylem and phloem) are at work</span>
Answer:
False
Disease in the circulatory would affect other organ system