Bio Quiz 3
1. Fossils found in the lowest geological strata are generally the most advanced. complex. x primitive. widespread. specialized.
2. The place Darwin visited on his trip around the world that had the greatest impact on his thinking was the Canary Islands. Africa. the Hawaiian Islands. x the Galapagos Islands. Brazil.
3. According to Darwin, natural selection is based on the ____ found in populations. acquired characters x variations weakest members noncompetitors similarities
4. Which of the following evolve? x populations genera kingdoms phyla individuals
5. New alleles arise by x mutation. migration. genetic drift. random mating. independent assortment.
6. The maintenance of Hardy-Weinberg equilibrium is encouraged when sexual selection occurs. when mutations occur. in small populations. x when there is no gene flow between different populations. all of these
7. The introduction of a small population onto an island that results in a limited gene pool for a population best describes the Hardy-Weinberg law. genetic drift. the bottleneck effect. x the founder effect. the effect of genetic isolation.
8. The sharp reduction of the gene pool and the numbers of a population through a severe epidemic is an example of artificial selection. genetic isolation. x the bottleneck effect. the founder effect. all of these
9. The fossil record is incomplete because very few organisms were preserved as fossils. organisms tend to decay before becoming a fossil. animals with hard parts are preserved more easily. geological processes may destroy fossils. x all of these
10. Which of the following habitats is most likely to be rich in fossils? eroding hillsides deserts polar ice caps x bed of former shallow sea rocky plateau
11. A species is composed of related organisms. a group of reproductive females. x populations that have the potential to interbreed and produce fertile
2. The place Darwin visited on his trip around the world that had the greatest impact on his thinking was the Canary Islands. Africa. the Hawaiian Islands. x the Galapagos Islands. Brazil.
3. According to Darwin, natural selection is based on the ____ found in populations. acquired characters x variations weakest members noncompetitors similarities
4. Which of the following evolve? x populations genera kingdoms phyla individuals
5. New alleles arise by x mutation. migration. genetic drift. random mating. independent assortment.
6. The maintenance of Hardy-Weinberg equilibrium is encouraged when sexual selection occurs. when mutations occur. in small populations. x when there is no gene flow between different populations. all of these
7. The introduction of a small population onto an island that results in a limited gene pool for a population best describes the Hardy-Weinberg law. genetic drift. the bottleneck effect. x the founder effect. the effect of genetic isolation.
8. The sharp reduction of the gene pool and the numbers of a population through a severe epidemic is an example of artificial selection. genetic isolation. x the bottleneck effect. the founder effect. all of these
9. The fossil record is incomplete because very few organisms were preserved as fossils. organisms tend to decay before becoming a fossil. animals with hard parts are preserved more easily. geological processes may destroy fossils. x all of these
10. Which of the following habitats is most likely to be rich in fossils? eroding hillsides deserts polar ice caps x bed of former shallow sea rocky plateau
11. A species is composed of related organisms. a group of reproductive females. x populations that have the potential to interbreed and produce fertile