Refer to animation: speciation by vicariance. vicariance is defined as: variation in allele frequencies within a population of organisms. when a geographic barrier arises that isolates two populations. migration to a distant, isolated island resulting in isolated populations. variation in frequency of mutations among different genes in a population.

How does the bare soil surface type affect the amount of runoff

Hey, i was what is consisted in a sustainable city? like what unique designs they have, etc. for answering ; )

Ineed this answered asap the north korean communist government a. controls crop production and distribution. b. is not involved in crop production and distribution. c. exports its huge rice surplus to other countries. d. allows farmers to choose which crops to grow but controls where the crops are sold. which statement below is true? a. east asian nations are members of nafta. c. industry and production is not an important aspect of east asian economics. b. east asian nations are economically independent. d. the economies of most east asian countries are mixed or market systems. what is the main idea of this passage? a. the city of hiroshima can never fully recover from the atomic bombing of 1945. b. hiroshima is more modernized than any other city in japan. c. after being bombed, hiroshima was rebuilt and became a thriving urban port. d. the city of hiroshima has an extensive park system dedicated to peace.