Answer:
The answer is oxygen and glucose
It would be difficult to find the ideal CO2 level with a low light intensity because the plant will have a difficult time trying to survive.
This is because elements are pure substances with only one atom. When two or more elements are combined, you get compound elements; which allows for more substances to be created.
The answer is (C), because, red blood cells or wbc regulate body temperature (Idr), wbc fight infections, and rbc transport nutrients
DNA opens up and each strand is used as template for a new strand.