This is known as relational listening.
hope this helps!
Answer:
snakes detect the presence of an enemy or pray by interpreting chemical signals given off by potential prey.
Explanation:
snakes are able to "smell" their pray by picking up chemical signals with their tongue.
Answer:
San Pedro River in Arizona
Explanation:
Day favored the Sonora Valley as a probable point from which Arizona was reached. Furthermore, he opted for the San Pedro River route, specifying that Vázquez de Coronado had entered Arizona through a plain extending to the headwaters of the San Pedro River near present‑day Naco.
The Transcontinental Railroad innovation had the GREATEST impact on westward migration immediately after the American Civil War.
After the Civil War, there was great interest and opportunity with westward expansion. With the invention of the railroad, the transport of goods and people became quicker and less expensive than ever before.