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Evolution:
10.2: Darwin’s voyage provided insights into evolution.
1. How is variation different from adaptation?
2. What are two examples of adoptions that Darwin observed on the
Galapagos Islands?
3. What did Darwin conclude from the observations he made on this
voyage?
11.6: Evolution occurs in patterns.
1. Why is sexual selection not considered a random event?
2. Two related species becomes more different over time. What type
of evolution is this an example of?
3. Compare and contrast background and mass extinctions.
4. Describe the theory of punctuated equilibrium.
10.3: Darwin proposed natural selection as a mechanism for
evolution.
1. What is the main similarity between the process of artificial
selection and natural selection?
2. What is the main difference between artificial selection and natural
selection?
3. Could natural selection work on a trait that is not heritable? Explain.
4. Could natural selection work on a population that has no variation?
Explain.
12.1: Fossils are a record of life that existed in the past.
1. What is the main difference between relative dating and
radiometric dating?
2. What is the relationship between isotopes and half-life?
10.4: Evidence of common ancestry among species comes from many
sources.
1. How did the study of fossils support Darwin’s ideas about
evolution?
2. How did the study of organisms on islands help support Darwin’s
ideas?
3. In all organisms with backbones, including humans, early embryos
have gill slits that later develop into structures of ears and throats in
mammals. What does this suggest about the relationship between all
vertebrates?
4. How can sexual selection lead to highly exaggerated traits among
males?
11.5: New species can arise when populations are isolated.
1. What needs to happen in order for two populations to be isolated?
2. What is reproductive isolation?
3. How can new species arise through isolation?
4. Name and describe three ways in which populations can be isolated.
12.3: The origin of life on Earth remains a puzzle.
1. What are the two types of evidence that support the hypothesis
that Earth and the rest of the solar system was formed by a
condensing nebula?
2. How did the Miller-Urey experiment model the conditions of early
Earth?
12.4: Single-celled organisms existed 3.8 billion years ago.
1. Why is it reasonable to assume that the earliest life on Earth was
anaerobic (not needing oxygen to survive)?
2. How are cyanobacteria different from most bacteria?
3. The theory of endosymbiosis describes the probable evolution of
what type of cell?
4. Mitochondria and chloroplasts both have their own DNA and
ribosomes. How does this information support the theory of
endosymbiosis?