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:
Las guerras napoleónicas tuvieron consecuencias dramáticas para la economía española. La Guerra de la Independencia tuvo un impacto demográfico mayor que cualquier otro conflicto militar, incluidas las guerras civiles, en la era moderna. Los agricultores sufrieron la confiscación de sus cultivos y la destrucción de su principal activo de capital, el ganado.
explanation:
Answer:
Assyrian:
-This civilization built the first
library in history.
-
This civilization perfected the
use of iron to make weapons.
-
This civilization mastered the
art of building roads
Babylonian:
-This civilization took over the
Sumerian civilization.
-
King Hammurabi was an
important ruler of this
civilization.
-The Hanging Gardens were
this civilization’s greatest
achievement in architecture
Explanation:
Answer:
a.) give citizens direct input into the government.
Answer:The correct answers are as follows:
-humanism
-appreciation of the classics
-curiosity
