10. Give examples of ways in which genetic variation and environmental factors are causes of evolution and the diversity of organisms.11. Recognize that evidence drawn from geology, fossils, and comparative anatomy provides the basis of the theory of evolution.12. Relate the extinction of species to a mismatch of adaptation and the environment.

Evolution/AdaptationsMA Curriculum Strands

• Species• Evolution• Variation• Adaptation• Gradualism• Punctuated Equilibrium

Define the following:

• See page 159.• Copy the Table 1 and summarize

Describe Natural Selection

Compare and Contrast Acquired Characteristics with Natural Selection

Characteristics developed during a

parent’s lifetime will be passed to

the offspring.Ex: bodybuilders

creating a muscular child-False

1.Organisms have more offspring, much more than can survive.2. Variations occur among the species. Ex: different colored fur on rabbits3. Variations are passed to offspring. (Babies)4. Some variations are helpful… those with these variations have a reproductive edge.5. Over time individuals w/variations dominate the population…become a separate species

Both explain how organisms

change over time!

Hypothesis: Acquired Characteristics Natural Selection

Same

Evolution Summary• Evolution is the result of random mutations in a

species.• Mutations = Variations• Helpful variations = Adaptations• Adaptations give organisms an advantage and they

reproduce and pass these traits down and eventually dominate and over very long periods of time become a new species.

• Environmental pressures = Space, food, predators.• Can be a slow or rapid process

Evidence for EvolutionGroup 1•Fossils 165 - 166

Group 2•Aging & Embryology•167 - 169

Group 3•Homologous•Vestigial Structures•DNA 170 -171