Explore BrainMass

Patterns of Evolution

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Humans shape their environment in ways that other organisms cannot. Are humans subject to the same pressures of natural selection as other organisms? Why or why not?

Provide an example of convergent and divergent evolution, adaptive radiation, and co-evolution. Then, respond to the following:

Choose one of the examples you provided and discuss the implications this example may have for future humans.

© BrainMass Inc. brainmass.com October 24, 2018, 10:26 pm ad1c9bdddf

Solution Preview


Here are the answers to your questions:


a. Humans are no longer subject to the same selective pressures as other organisms because modern technology allows us to avoid the less desirable consequences of natural selection. For instance, modern medicine allows us to live longer because it can repair and resuscitate individuals such as those involved in severe accidents or suffering from life threatening disease. Central heating, grocery stores, clean water (industrialized countries) suggest we are no longer at the mercy of a changing environment. Technology provides all of the requirements needed to maintain our ...

Solution Summary

Is human evolution under natural selection anymore? The solution provides insights into this question including examples of major evolutionary traits and discusses how co-evolution will influence human beings in the future.

See Also This Related BrainMass Solution

Evolutionary changes is predicted.

Choose one animal species. Your goal is to describe the way in which an evolutionary change might occur for a particular characteristic (trait) of a population of that species as a result of natiral selection.
The characteristic (trait) could be something like coloration pattern, length of the limbs, size of the teeth or beak, or any measureable trait that is inherited.
The organism you choose should be a real one but the evolutionary change in a trait that you describe can be real or friction.
a.Explain how the changes in this trait occurs. You will describe the trait in the population at the starting point and then what the trait will look like at a later time, as a result of natural selection. b. Make sure to explain the process by which the changes occurred. What is the selective pressure? Explain why the change might confer more fitness to a particular environment?
State the name of the species. what population of the species and its geographic location. State the characteristic (trait) of the population and how this trait varies among individuals. What changes occurs in the environment that causes a change in the above characteristic?

View Full Posting Details