Population Genetics — Unit test Answers

Which of the following is a possible long-term consequence of two organisms occupying the same niche?a.Local extinctionb.Cooperationc.Interbreedingd.Coexistence

What is a possible cause for a decrease in ecosystem productivity?a.an increase in the biodiversity of the ecosystemb.a decrease of the biodiversity of an ecosystemc.the biodiversity of an ecosystem experiencing no changed.an ecosystem becoming more stable

Which of the following is not a possible long-term consequence of two organisms occupying the same niche?a.Local extinctionb.Adaptationc.Migrationd.Coexistence

The Amish are an example of a population where the founder effect has resulted in generally rare genetic traits being more commonly expressed.

How can an increase in biodiversity lead to an increase in ecosystem stability?a.A more biodiverse ecosystem is not subject to change.b.A more biodiverse ecosystem has a higher chance of adapting to species changes.c.A more biodiverse ecosystem has fewer species types to balance.d.A more biodiverse ecosystem is subject to fewer natural disasters.