It’s the second one I believe:)
Is this not about a human? We only have one aortic arch
Changes in the gene pool are closely related to genetic mutations, which are a major part of evolution.
Answer:
The electromagnetic force is responsible for generating visible light as well as radiation in other wavebands not detectable by the human eye. As electrons and protons fly around bumping into each other in a light source, the electromagnetic force produces photons of all wavelengths across the electromagnetic spectrum.
Explanation:
