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.
John Lea and Jock Young, leaders of the leftist realism movement, contend that the poor are doubly abused, first by the capitalist system and then by members of their own class.
Left realism in criminology appear to form critical criminology, it argues that the crime is inappropriate affects the working class people, but that solution that only increases suppression to make it worst in the problem crime.
A state can be defined as a 'political community' which gathers under one leader and abide by a specfic set of rules and laws.
The early states as those seen in the Sumer, where city-states. Small in size, ruled by a king with the support of the local people and land lords.
The ruler also had a small army to maintain local order and to protect against foriegn invasions.
Answer:
Transportation is the first and main step for trading and trading is a backbone for country's economy, and transportation includes the territory sector of country's GDP.
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Answer:
False
Explanation:
I 10 goes through the panhandle of Florida and does not run through Tampa.
