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Questions and Answers

Which theory on the origins of life suggests that all living beings were created by God?

  • Creationism (correct)
  • Abiogenesis
  • Endosymbiotic Theory
  • Evolution

What characteristic differentiates a living organism from a nonliving object?

  • Response to stimuli (correct)
  • Inorganic composition
  • Passivity to change
  • Absence of metabolism

Where were the oldest traces of fossils discovered, dating back to 3.5 billion years ago?

  • Europe
  • South America
  • .North America
  • Western Australia (correct)

What is the process by which stromatolites were formed?

<p>Growth of layer upon layer of single-celled microbes (A)</p> Signup and view all the answers

Which theory suggests that life came from inorganic compounds or chemicals?

<p>.Abiogenesis (C)</p> Signup and view all the answers

What is the estimated age of Earth based on radiometric dating of the oldest rocks on Earth?

<p>.4.54 billion years old (A)</p> Signup and view all the answers

What genetic phenomenon is responsible for the change in allele frequency due to random sampling of organisms?

<p>Genetic Drift (D)</p> Signup and view all the answers

What can lead to the elimination of an allele from a population by chance?

<p>Population Bottlenecks (C)</p> Signup and view all the answers

Which event can drastically reduce a population's genetic diversity?

<p>Population Bottlenecks (D)</p> Signup and view all the answers

When does the Founder Effect occur?

<p>When a small group breaks off from a larger population to establish a new population (B)</p> Signup and view all the answers

What is the primary factor leading to competition for survival due to overproduction of offspring?

<p>Variation (B)</p> Signup and view all the answers

Which human-directed selection process has led to the creation of great varieties of animal breeds?

<p>Artificial Selection (C)</p> Signup and view all the answers

What type of barrier prevents mating due to differences in size or shape of reproductive parts?

<p>Mechanical Isolation (A)</p> Signup and view all the answers

Which type of isolation involves potential mates living in the same area but occupying different habitats?

<p>Ecological Isolation (B)</p> Signup and view all the answers

In which type of isolation do gametes come into contact but fertilization does not occur?

<p>Gametic Isolation (C)</p> Signup and view all the answers

What is the term for the barrier that involves differences in mating behavior such as different courting rituals?

<p>Behavioral Isolation (D)</p> Signup and view all the answers

Which type of isolation results in the production of a sterile offspring?

<p>Hybrid Sterility (A)</p> Signup and view all the answers

What does temporal isolation refer to?

<p>Mating at different times (A)</p> Signup and view all the answers

Why does Ellis-Van Creveld Syndrome occur at high frequency in the Lancaster Amish gene pool?

<p>Caused by both the founder effect and inbreeding (C)</p> Signup and view all the answers

What is one of the common features of a population that provides improved functions?

<p>Adaptation (C)</p> Signup and view all the answers

What do closely related individuals tend to share more of?

<p>Harmful recessive alleles (D)</p> Signup and view all the answers

Which factor contributes to a high incidence of genetic disorders in inbred populations?

<p>Inbreeding (C)</p> Signup and view all the answers

What causes natural selection to occur over generations?

<p>Change in allele frequency (C)</p> Signup and view all the answers

What may lead to the exchange of genes between two populations?

<p>Movement of genes into or out of a population (B)</p> Signup and view all the answers

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