Ais an organism's role in a community. is it d? ? habitat carrying capacity biotic factor niche

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

New york city has 2,181 inhabitants per square mile. the state of alaska has 1.03 inhabitants per square mile. ecologists would say alaska has a low exponential growth population density birth rate carrying capacity

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?