AP Biology / Unit 7: Natural Selection
7.8 Continuing Evolution
Notes
Evolution is ongoing:
- Antibiotic resistance in bacteria, pesticide resistance in insects.
- Changes in the fossil record and in observed populations.
Practice
Antibiotic resistance spreads because:
Selection on existing variation.
Finishing a full antibiotic course helps:
Fewer survivors to multiply.
Which is evidence that evolution is still happening?
Observed change in populations.
Ready for more? Take the Unit 7 test.