3. Amoeba Sisters Natural Selection

Which squirrel has the greatest biological fitness?

• The one that is the fastest

• The one that is the strongest

• The one that has the most offspring

• The one that is the oldest

Change over time

• Homeostasis

• Replication

• Evolution

• Creationism

Which of the following leads to variation in a population?

• Mutation

• Deforestation

• Mitosis

• Temperature change

All mutations are negative.

• True

• False

You get strep throat. Your doctor gives you an antibiotic. The antibiotic kills most of the bacteria. Due to a mutation, some of the bacteria are able to resist the antibiotic. The bacteria reproduce, and repopulate the throat. The new population is different from the original population. The antibiotic resistance allele is more common in the new population. This description is an example of _______.