The source is the allele for beak size being different, or more specifically the DNA sequences being different.
Well one thing u could do is to reduce the amount of fossil fuels burning (idk how, maybe finding a better alternative to burning them) another way would be planting more trees, or buy energy efficient products. Basically these things just reduce the carbon footprint by reducing the amount of fossil fuels (because we only have a limited amount) i hope this helped
Answer:
Hello =D
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<em>Metabolic water refers to water created inside a living organism through their metabolism, by oxidizing energy-containing substances in their food</em>
Source:<em> https://www.biology-online.org/dictionary/Metabolic_Water</em>
Best regards
DNA replication results in two copies of a double helix of DNA, while DNA transcription results in a single-stranded RNA molecule
