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Understanding Evolution and Biodiversity: Key Concepts in Evolutionary Biology

This educational resource focuses on the fundamental concepts of evolution and biodiversity, tailored for grade-level learning. It covers topics such as microevolution, macroevolution, natural selection, and genetic mutations. Students will explore essential questions about species origin, adaptive traits, and the impact of extinction on ecosystems. The material includes multiple-choice questions and true/false statements to assess understanding, making it a valuable tool for both teaching and self-study.

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Understanding Evolution and Biodiversity: Key Concepts in Evolutionary Biology

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Presentation Transcript

  1. Evolution & Biodiversity Grade: «grade» «subject» Subject: «date» Date:

  2. 1 The idea of many species descending from a common ancestor is called A microevolution B macroevolution C co-evolution D sexual dimorphism

  3. 2 A species of fish living in a coral reef changes the color of its scales (over generations) from yellow to blue. This is an example of A microevolution B macroevolution C co-evolution D homologous structures

  4. 3 All of the genes in a population is known as a A gene dish B gene pool C homologous structure D gene maximum

  5. 4 Most genetic mutations A are helpful to a species B are harmful to a species C have no effect on a species D give most species super powers

  6. 5 The bone structure of the human arm and the bone structure of the pectoral flipper of a porpoise are very similar. This is an example of A co-evolution B homologous structures C analogous structures D microevolution

  7. 6 True or False: A trait must give a certain population of a species an advantage (differential reproduction) for it to effect natural selection. True False

  8. 7 The ___________ are the organisms that crawled from the water & became modern tetrapods: A Ray-finned fish B Cartilaginous fish C Lobe-finned fish D Swim-bladderless fish

  9. 8 Which of the following is NOT a requirement for Natural Selection: A The trait must be improved upon during the life of the population/organism B The trait must be passed on from parent to offspring C The trait must allow a reproductive benefit over the individuals within a population that lack the trait D The trait must be variable within the population

  10. 9 Which of the following is an example of macroevolution: A Over many generations a species of mice gets darker in color due to predation from owls and falcons B Over many generations an off-shoot of catfish changes from a bottom-feeder to an aggressive hunter, no longer able to reproduce with the former catfish C Over many generations a species changes in size from large to small to better fit in with the environment D Over many generations a species of fish changes its scale color from yellow to blue

  11. 10 Corn (maize) originally appeared like a grassy bush, but over many thousands of generations mankind created the corn that is so widely used in the United States of today. This is an example of: A Natural Selection B Diversifying natural selection C Sexual Selection D Artificial Selection

  12. 11 After a mass extinction the empty niches will eventually (1 to 10 million years) be filled by new species. This is called A adaptive radiation B homologous structures C analogous structures D repressive radiation

  13. 12 True or False: Extinction of a species is a common & natural process. True False

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