Two frog populations (same species) living in two neighboring lakes sing slightly different courtship songs. increased irrigation makes the land between the two lakes wetter, allowing frogs to expand their ranges to the area between the lakes. females in both populations prefer loud frogs to quiet frogs, but do not distinguish between the two slightly different songs. assuming that courtship song differences have a genetic basis, predict what will likely happen to the songs of the two frog populations.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Food contains a sugar called ( ), which is broken down in a process called cellular ( ). this process uses ( ) to break down food molecules and provide energy for cells. fill in the parentheses

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an