Hi there,
The answer to this question is
D. All of these
Changes in different temperature and acidity can change the function of a cell. Acidity and Temperatures are usually balanced for the cell function but one small change in one of them can throw off the cell of the pH levels.
Hope this is correct :)
Have a great day
This is because viruses, which are dealt by with antiviral drugs,are tiny and replicate very first changing how a cell works
It is the variable being controlled/changed to see if there are any effects on the dependent variable (the thing getting tested/measured)
Photosynthesis is the correct answer, where plants release oxygen and humans use this to release carbon dioxide into plantes