This is the Speaker of the House. Today that would be Paul Ryan.
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:
like what i said dont give up
Explanation: head up hi
Answer:
The correct answers are:
movable type – carved letters arranged in a tray and used for printing
currency – money used by a country
unity – to bring people or things together
porcelain – a very delicate form of white ceramic
jade – a green stone often used in carvings
Explanation:
Movable type is a printing system that consists of various movable components (carved letters arranged in a tray and used for printing) which reproduce a written material on a paper.
Currency represents any kind of money (coins or paper) used within a certain country to pay for goods and services. Its function is to allow the trade between two countries and make it simpler and easier.
Unity is a concept that supposes bringing people or things together by combining all its parts into one.
Porcelain is a type of white ceramic material found in China made by the heating process. It is often used for the fabrication of decorative objects and different types of working equipment.
Jade is a green mineral used to produce carvings, tools, gemstones, jewelry,etc.