What is the difference between an "old" and a "new" strand of dna?

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.

Explain the causes and effect of damage to the genetic code.