Mutation is a source but it is not the main source after it comes recombination in which 2 chromosomes with “normal” survival are taken from natural population of Drosophila and combined. Then comes immigration of genes in which the new chromosome mix in with different gene frequencies.
Answer:
It may help to have the diagram, but the last one makes the most sense.
Explanation:
The main differences between prokaryotic and eukaryotic cells are that eukaryotic cells have a nucleus and membrane-bound organelles, and prokaryotic cells do not have either.
Answer:
I think it's water vapor, but I don't know
Explanation:
water vapor
The ecosystem will collapse and fail because every species are needed and play a role in the ecosystem.
Answer:
Pine trees are conifers!
Explanation:
Your question was a bit confusing but I'm assuming you are asking which group does pine trees belong to. Hope this helps!