You can expect 1-3 multiple choice questions from section 19.1 19.1 Public Exam Questions Evolution, Natural selection & Artificial selection You can expect 1-3 multiple choice questions from section 19.1

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 64. Which improves an organism’s ability to survive and reproduce in its environment? (A) adaptation (B) convergence (C) divergence (D) embryology

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 66. Which is an example of natural selection in action? changing fur color in African marten due to excessive exposure to sunlight (B) changing numbers in dark-colored field mice populations over 200 years (C) production of genetically modified foods (D) production of thoroughbred race horses

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 67. What must occur for insects to adapt to an insecticide application? (A) competition (B) low natality (C) random survival (D) variation

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 58. Which best defines evolution? (A) change in the genetic composition of a population (B) change in the phenotype of an individual through time (C) close resemblance between parents and offspring (D) individuals in two populations looking different

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 66. What best explains the fact that corn cobs today are approximately twice as long as they were 150 years ago? (A) Agricultural fields were small 150 years ago and nutrients were limited. (B) Genetic seed production was poor 150 years ago. (C) Selective and genetic engineering are recent developments. (D) There were cooler temperatures and decreased rainfall 150 years ago.

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 67. Which condition is the best example of industrial melanism? (A) The bark of trees changed color due to mutation. (B) The bark of trees changed color due to natural selection. (C) The dark peppered moth population decreased. (D) The dark peppered moth population increased.

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 58. What is meant by the term evolution? (A) For every new species evolving, an old one vanishes. (B) Gradual changes in a species can occur through time. (C) Species normally remain stable for millions of years. (D) There will be no new species evolving.

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 65. What is the major mechanism responsible for the many different breeds of dogs? (A) artificial selection (B) genetic drift (C) genetic mutation (D) natural selection

19.1 Public Exam Questions Evolution, Natural selection & Artificial selection 66. Why is the excessive use of antibiotics a concern for the medical community? (A) Antibiotics are very expensive to manufacture. (B) Humans are evolving a resistance to some antibiotics. (C) Some bacteria are evolving resistance to antibiotics. (D) Viruses are not killed by antibiotics.