Answer:
Explanation:
The song is learned. Experiments have shown that if a young male bird never heard the song of its own species when it was growing up, then it won't be able to sing the complete song that its own species normally sings. Learning is also one reason many songbirds have regional dialects. Morphology OTOH is determined genetically so it is intermediate because the hybrid have genes from 2 different species which have different morphologies. So, the hybrid would learn either one song or the other, or perhaps even both songs, but not an intermediate song...
Answer:
They both go back and forth, such as the climate going from hot to warm, and the tectonic plates of the earth going from closed 300 million years ago to spreading far apart now.
By putting DNA into the semi confusing then you’ll have you answer
Increased heat, drought and insect outbreaks, all linked to climate change, have increased wildfires. Declining water supplies, reduced agricultural yields, health impacts in cities due to heat, and flooding and erosion in coastal areas are additional concerns.
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