1. Answer;
They evolved separately as they moved north and became two separate species.
Explanation;
The greenish warblers weren't geographically isolated, but they migrated around the Tibetan Plateau, evolving separately until they were no longer able to interbreed when both species (East and West) contacted in Siberia.
Greenish warblers were thought to have evolved from a single ancestral population that gradually diverged into two new species as it expanded northwards around the Tibetan plateau.
2. Answer;
- Their plumage patterns.
- Genetics and history
Explanation;
West Siberian greenish warblers (P. t. viridanus) and east Siberian greenish warblers (P. t. plumbeitarsus) differ subtly in their plumage patterns, most notably in their wing bars, which are used in communication. While viridanus has a single wing bar, plumbeitarsus has two. Around the southern side of the ring, plumage patterns change gradually.
Additionally, the two northern forms viridanus and plumbeitarsus are highly distinct genetically, but there is a gradient in genetic characteristics through the southern ring of populations. The greenish warblers were once confined to the southern portion of their range and then expanded northward along two pathways, evolving differences as they moved north. When the two expanding fronts met in central Siberia, they were different enough that they do not interbreed.
Answer:
you should not ask for a report on brainly my suggestion is find the info and look on google to find the stuff then put it in your own words
Explanation:
Answer:
Sa aking palagay, kaya nasabing hindi itinanim ng mga kastila sa isipan ng mga pilipino ang kahalagahan ng isang wika ay upang sila ay maging walang muwang at magkaroon ng kahinaang loob na kalabanin ang mga dayuhang kastila.
I hope it will help:)))
Honor is defined as a intangible asset that determines how other treat you
It still exists till today and it’s a very easy thing to lose, like all things, it’s hard to get back
I’d define it as a useless thing that should be discarded before people kill each other (more than they already do)
If i had to choose i’d say cheese, just because it doesn’t make sense lol
