I only have one reason but hope it helps!
Because without those bases pairing there <span>would be no structure of a DNA.</span>
Because the earth is moving around the sun but the sun isn’t revolving around anything
Answer:
I think it's called 'filling in'
Explanation
Hope this helps :)
Photosynthetic organisms, known as photoautotrophs, capture the energy from sunlight and use it to produce organic compounds through the process of photosynthesis. In photosynthesis, the inorganic compounds of carbon dioxide, water, and sunlight are used by photoautotrophs to produce glucose, oxygen, and water.
