Biology paper

1. Compare and contrast directional selection and disruptive
selection, and provide an example of each.
2. Many pathogenic bacteria species are becoming resistant to
antibiotics. Explain how such adaptations can develop through the
process of natural selection. (Hint: Relate this example to the
conditions that are necessary for natural selection to occur.)
3. What are the major evolutionary trends that developed among
major vertebrate groups, specifically those that allowed for the
transition from aquatic to terrestrial life?
4. Providing examples, explain how sexual reproduction in plants has
evolved to become less dependent on water.