I am going to say A because a cell makes up matter of the tree so when it duplicates it makes the tree taller..
Please tell me if this is correct or not.. thanks!!
The correct answer is A) OH.
Unimportant , the body engind
Answer:e
retroviruses
Explanation:
Retroviruses appear to cause cancer in their host by mutating the host gene sequences allowing for the activation of some potentially oncogenic genes to be expressed. They do this by inserting their proviral DNA into the host genome at specific regulatory sequences deregulating cellular signaling and transcriptional controls.