You are the city planner for Philadelphia. You are looking for a place to build a city landfill for toxic waste. You have 3 options, place the landfill: A. In the Overbrook section, behind the Overbrook High School

B. Near the airport

C. Behind City Hall, downtown Philadelphia

What are the result of when individual components in an organism interact with others to create noval stucture and function called

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.