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Evidence for Evolution (Grade 10)

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Evidence for Evolution

Which factor does NOT support Darwin's theory of evolution?
  1. fossil record
  2. homologous structures
  3. similarities in embryos
  4. differences in plants
Two different organisms have anatomically similar structures that are believed to have originated from a common ancestor. The functions of the structures are different as a result of the environments in which the organisms live. These anatomically similar structures are
  1. vestigial.
  2. homologous.
  3. tropisms.
  4. mutations.
In forming his theory of evolution, of what did Darwin most lack an adequate understanding?
  1. geology
  2. heredity
  3. anatomy
  4. geography
What are remnants of organs that were better developed and more functional in the ancestors of a species and that now serve little or no purpose, such as the pelvis in some whales and snakes?
  1. remainder organs
  2. vestigial organs
  3. homologous structures
  4. analogous structures
One of the most commonly known species that Charles Darwin observed and studied while on the Galapagos Islands were finches. How did these finches arrive in the Galapagos Islands?
  1. They were left there by previous travelers.
  2. They spontaneously generated once food sources were available.
  3. They flew, or were blown, from South America.
  4. Darwin brought them with him from other places he had visited before.
The picture shows examples of the different beak types Darwin observed on the finches of the Galapagos Islands. How does this structure provide evidence for evolution?
Darwin's Finches

Which pair indicates an example of homologous structures?
  1. tail of a cheetah and tail of a dog
  2. wing of a bat and wing of a bird
  3. fluke of a whale and hand of a human
  4. ears of an elephant and scales of a dinosaur
The long beak of a hummingbird has specially adapted to fit into particular flowers to get the nectar that is deep within the petals. Only certain birds can feed on these flowers, and the flowers can be pollinated only by certain species of birds. This relationship indicates these species have undergone                             .
How have sharks and dolphins been affected by convergent evolution?

How does having a common embryology serve as evidence for evolution?

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