5 Written questions
5 Matching questions
- In the mid-1900s, the Soviet geneticist Lysenko exposed winter wheat plants to ever-colder temperatures, collected their seeds, and then exposed the seedlings to ever-colder temperatures. He repeated his attempts over the course of decades in an attempt to evolve cold-tolerant winter wheat. Lysenko's attempts in this regard were most in agreement with the ideas of
- Which of the following events, as described here, is most in agreement with the idea of catastrophism?
- During drought years on the Galapagos, small, easily eaten seeds become rare leaving only large, hard-cased seeds that only birds with large beaks can eat. If a drought persists for several years, then what should one expect to result from natural selection?
- A biologist studied a population of squirrels for 15 years. During that time, the population was never fewer than 30 squirrels and never more than 45. Her data showed that over half of the squirrels born did not survive to reproduce, because of competition for food and predation. In a single generation, 90% of the squirrels that were born lived to reproduce, and the population increased to 80. What inferences might you make about this population?
- Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes), was Cuvier's attempt to explain the existence of
- a c. Lamarck.
- b b. the fossil record.
- c d. More small-beaked birds dying than the larger-beaked birds. The offspring produced in subsequent generations have a higher percentage of birds with large beaks.
- d d. the demise of the dinosaurs, and various other groups, by the impact of a large extraterrestrial body with Earth
- e e. A, B, and C
5 Multiple choice questions
- e. individuals must adapt to their environment.
- c. Female algae eaters may become larger, bearing broods composed of more, and larger, young.
- e. biogeography.
- a. 2, 4, 1, 3
- b. Populations tend to increase at a faster rate than their food supply.
5 True/False questions
Both Darwin's and Lamarck's ideas regarding evolution suggest which of the following? → e. The interaction of organisms with their environment is important in the evolutionary process.
If the HMS Beagle had completely bypassed the Galapagos Islands, Darwin would have had a much poorer understanding of → b. the ability of populations to undergo modification as they adapt to a particular environment.
Which of the following statements is not an inference of natural selection? → e. individuals must adapt to their environment.
"Improving the intelligence of an adult through education will result in that adult's descendants being born with a greater native intelligence." This statement is an example of → d. Well-adapted individuals leave more offspring, and thus contribute more to the gene pool, than poorly adapted individuals.
During a study session about evolution, one of your fellow students remarks, "The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which statement would you use to correct this student's misconception? → a. Characteristics acquired during an organism's life are generally not passed on through genes.