Biodiversity and Evolution

Biodiversity and Evolution

Week 3 Lesson 3

LEARNING OBJECTIVES

• Explain the occurrence of evolution

• Explain how fossil records, comparative anatomy, and genetic information provide evidence for evolution

  
  

Pretest

5-item test

Multiple Choice

Which idea stems from the theory of evolution?

• A. The earth is relatively young.

• B. Each organism is specially created.

• C. Species are related by common descent.

• D. A mix of fossils in a region indicates that a local catastrophe occurred.

Multiple Choice

Adaptation promotes ______________.

• A. the chance to survive

• B. the chance to reproduce

• C. the chance to survive & reproduce

• D. none of the above

Multiple Choice

Which of the following phrases best describes the process of evolution?

• A. the change of populations through time

• B. the change of organisms from simple to complex

• C. the development of man from monkey-life ancestors

• D. the development of characteristics in response to need

Multiple Choice

What is the method used by the Paleontologist to determine the age of the fossils by using the decay or radioactive isotopes present in rocks?

• A. Relative dating

• B. carbon-14 dating

• C. geologic time scale

• D. fossil records

Multiple Choice

Which of the following statements DOES NOT describe Darwin’s theory of natural

selection?

• A. Members of a population will compete.

• B. Populations tend to reproduce in small numbers.

• C. Members of a population have heritable variations.

• D. Some members of a population have adaptive traits.

Truth or Nonsense

Poll

Mutation is a change in the base-sequence of DNA.

• Truth

• Nonsense

Poll

Chromosomal mutations are changes where parts of the chromosomes are broken and lost during mitosis.

• Truth

• Nonsense

Poll

Down’s syndrome is not an example of mutation.

• Truth

• Nonsense

Poll

Mutation does not affect the growth and development of an organism.

• Truth

• Nonsense

Poll

Genetic code is set of rules that specify the codons in DNA or RNA that corresponds to the amino acids in proteins.

• Truth

• Nonsense

• Genetic code is set of rules that specify the codons in DNA or RNA that corresponds to the amino acids in proteins.

  
  

• Why some animals before are very different from the animals we have now? 

  
  

• You may also wonder why some animals that are present before are no longer existing today.