Answer:
I believe the answer is C
Answer:
The overall concentration of hydrogen ions is inversely related to its pH and can be measured on the pH scale . Therefore, the more hydrogen ions present, the lower the pH; conversely, the fewer hydrogen ions, the higher the pH.
C. crossing over This is because each gene have a piece of each other Hope this helped=)
Respiration and photosynthesis because both happen through the leaves of any plant.
