1.A)  Adaptations to a Changing Environment • Explain why it is necessary for organisms to have the ability to adapt. • Why is the current environment making it difficult for organisms to adapt? • Explain how organisms develop adaptations.

Sexual and Ecological selection often oppose each other: give 2 examples

What is the process of natural selection and what evidence is there that indicate we are still evolving?

Q.10. Define artificial selection. Has it affected the process of natural selection?

Describe how natural selection can create new species through reinforcement.

1.  What is the function of melanin in humans? What is the function of melanin in other species? 2.  According to the film, why is there a lack of diversity in the MC1R allele among African populations?  3.  According to the film, why was dark skin selected for regions close to the equator?  4.  Describe the selective pressure favoring light skin in regions far from the equator.  5.  Which human populations living in which environments are most at risk for rickets today and why?

Becca loves German Shepherds and wants to have one as a pet. She locates a breeder and agrees to purchase one of the puppies. Which type of selection occurs from this type of human intervention?         directional selection         stabilizing selection         disruptive selection         artificial selection

1. The majority of antibiotic use in the United States is for agriculture, primarily in livestock. Why is this a problem? 2. Given the fact that humans are the ones producing and distributing pesticides, why do we call the development of pesticide resistance natural selection rather than artificial selection?