5 Written questions
5 Matching questions
- Which statement about natural selection is most correct?
- "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
- In a hypothetical environment, fishes called pike-cichlids are visual predators of algae-eating fish, i.e., they locate their prey by sight. If a population of algae eaters experiences predation pressure from pike-cichlids, which of the following would least likely be observed in the algae-eater population over the course of many generations?
- 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?
- Given a population that contains genetic variation, what is the correct sequence of the following events, under the influence of natural selection?
- a d. Well-adapted individuals leave more offspring, and thus contribute more to the gene pool, than poorly adapted individuals.
- b c. Female algae eaters may become larger, bearing broods composed of more, and larger, young.
- c a. 2, 4, 1, 3
- d b. Lamarckism.
- e e. A, B, and C
5 Multiple choice questions
- e. individuals must adapt to their environment.
- e. A and B only
- d. the demise of the dinosaurs, and various other groups, by the impact of a large extraterrestrial body with Earth
- 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.
- c. Lamarck.
5 True/False questions
In evolutionary terms, the more closely related two different organisms are, the → c. more recently they shared a common ancestor.
Darwin had initially expected the living plants of temperate South America to resemble those of temperate Europe, but he was surprised to find that they more closely resembled the plants of tropical South America. The biological explanation for this observation is most properly associated with the field of → d. Well-adapted individuals leave more offspring, and thus contribute more to the gene pool, than poorly adapted individuals.
Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes), was Cuvier's attempt to explain the existence of → b. the fossil record.
Natural selection is based on all of the following except → d. a mechanism for evolution that was supported by evidence.
Which of the following represents an idea Darwin took from the writings of Thomas Malthus? → b. Populations tend to increase at a faster rate than their food supply.