Answer:
An example of codominance would be when a red and white flower breed a pink flower.
 
        
             
        
        
        
Veins provide support for the leaf and transport both water and minerals (via xylem) and food energy (via phloem) through the leaf and on to the rest of the plant.
        
             
        
        
        
B. The nervous system collects and responds to information about the external and internal environment.
        
             
        
        
        
Answer: Answer is below in the explanation.
Explanation:
As shown in the animation from my school, a DNA molecule wraps around histone proteins to form tight loops called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin. Chromatin, in turn, loops and folds with the help of additional proteins to form chromosomes.
(Link my school used https://www.biointeractive.org/classroom-resources/how-dna-packaged )