Answer
the first on what he said he prevented enslaved persons from buy their own freedom
Explanation:
Answer:
The racist attacks in 1919 were widespread, and often indiscriminate, but in many places, they were initiated by white servicemen and centered upon the 380,000 black veterans who had just returned from the war. “Because of their military service, black veterans were seen as a particular threat to Jim Crow and racial subordination,” notes a report by the Equal Justice Initiative
Explanation: I hope I helped :)
The economic doctrine that was typically used during the
post civil war era is the laissez-faire. The lasses-faire is a type of policy
of which people has the right to take action or do what they want to do such as
like the government and having to not interfere with what they want to do.
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.
