Answer:
The decline of the American buffalo is linked to the development of the Dust Bowl in this passage because:
B Buffalo had helped fertilize the prairie grasses.
Explanation:
To understand this answer we need to analyze the context. First of all the Dust Bowl is the name given to identify the drought in a certain region called the dust bowl. It was composed of regions from Colorado, Texas, New Mexico, Oklahoma, and Kansas. And it happened because of the overexploitation of the environment. The farmers changed the ecosystem by transforming the majority of the land in the zone into agricultural land. Also, they killed the animals in the zone. Including buffalos, which they hunted until they were seen in small groups. Even though these animals helped the ecosystem to be balanced.
<span>The US Congress adopted a compromise between the New Jersey and Virginia plans that allowed for population-proportional representation in the House of Representatives that favored the Virginia Plan, while adopting equal representation between the states in the Senate, a move which favored the New Jersey Plan.</span>
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.
The reason why is England is about 3,000 miles away so it was tough to get supplies etc. to the colonists.
