The Evolution unit for SBI4U is full of unique concepts. In order to help learn these concepts, the following review questions have been provided. Grab a scrap piece of paper and write down your answers to the following questions. Each chapter has been reviewed with 10 multiple choice and 5 true or false questions. When you are done, you may check your answers with the provided link at the bottom off the page. Chapter 11 Review Questions Part A; Multiple Choice 1. By what process does an organism’s genetic makeup change over generations? A) Uniformitarianism B) Evolution C) Actualism 2. A) B) C) What are fossils? Preserved remains of organisms found in layers of strata. Primitive drawings on the walls of caves depicting ancient life. Mummified remains of ancient organisms. 3. Which theory was used to explain extinction periods in the early development of evolutionary theories? A) Natural Selection B) Actualism C) Catastrophism 4. Who proposed the theory of Natural Selection and did significant research into proving his theory? A) Darwin B) Lamarck C) Buffon 5. A) B) C) Homologous features are described as; Structures that serve different functions and don’t share common origin. Structures that share no common origin but are similar in function. Structures that serve different functions but share a common origin. 6. A) B) C) Analogous features are describes as; Structures that share common origins but serve different functions. Structures that have no common origin but are similar in function. Non-functioning structures that are similar to functioning structures in related species by homologous features. 7. Fossils can not form in some types of material, which of the following could not support fossilization? A) Harden lava after a volcanic eruption. B) Amber C) Igneous rock 8. A) B) C) 9. A) B) C) What is a vestigial feature? A structure within an organism that is nonfunctioning but resembles functioning features in related ancient species by homologous features. A functioning structure in current species. A nonfunctioning structure with in an organism that has no resemblance to any other species. Which of the following is a well known vestigial feature with in the human body? Human body hair. The appendix. The human thumb. 10. Darwin’s voyage of discovery lead to the beginnings of many modern theories. What was the name of the ship he traveled on? A) The Sheppard. B) The Beagle. C) The Beetle. Part B; True or False 1. Fossils found in the lower layer of strata are said to be more modern then fossils in the upper layers. 2. The release of subatomic particles from the nucleus of an atom resulting in an isotope change is used to determine the age of organic materials. 3. Species remain unchanged and no integration occurs. 4. Evolutionary theory is based on the continual analysis and interpretation of evidence. 5. Artificial selection in breeding processes used by livestock breeder’s mimic’s natural selection within the animal kingdom. Chapter 12 Review Questions Part A; Multiple Choices 1. If the dominant allele for black fur is represented by BB, and the recessive allele is b and represents white fur in bunnies. Which of the following Allele expressions would represent a bunny that is homozygous recessive for white fur? A) bb B) Bb C) BB 2. A) B) C) The genetic makeup of an organism is called an organisms, what? Genotype Genome Gene pool 3. A) B) C) The physical appearance of an organism is depicted from an organism, what? Allele frequencies Genotype Phenotype 4. A) B) C) Which of the following is not a condition for a Hardy-Weinberg population? No mutations within the population’s members. Small population. No migration. 5. A drastic reduction in a population’s numbers can lead to homozygousity within a population. This is a result of what evolutionary mechanism? A) Founder Effect B) Bottleneck Effect C) Genetic Drift 6. what? A) B) C) New genetic material can only be introduces into a species gene pool through 7. A) The Founder Effect best describes which situation? A small population has migrated leaving the original population. The new population begins to reproduce but has limited alleles and results in a genetic drift. A severe genetic drift occurs when a population is drastically reduced by outside pressures. The appearance and disappearance or alleles within a species. B) C) Gene flow within a population. Migration Inheritable mutations occur within individuals who intern pass on their mutations to their offspring. 8. When common phenotypes are favored within a species this is attributed to which type of natural selection? A) Directional Selection B) Stabilizing Selection C) Disruptive Selection. 9. A) B) C) Sexual dimorphism is active within which selection process? Sexual Selection Cumulative Selection Directional Selection 10. When a horse and a donkey are bred in captivity, producing a mule. Which reproductive isolating mechanism ensures that the mule will be sterile? A) Mechanical Isolation B) Hybrid Inviability C) Hybrid Infertility Part B; True or False 1. Allopatric speciation is a result of geological isolation. 2. Mutation within individuals can be harmful, neutral or beneficial. 3. In the theory of Cumulative Selection, mutations and selective pressures didn’t start the evolution of complex structures. 4. The Hardy-Weinberg equation holds true to every population of known species. 5. Fluctuation in population size, natural selection, mutations and migration are all factors effecting evolution. Chapter 13 review Questions Part A; Multiple Choice 1. Primordial earth possessed an atmosphere of hot gases. Which group of gases contains a gas that wasn’t present in the atmosphere of primordial earth? A) Nitrogen gas, Carbon dioxide and methane. B) Nitrogen gas, Helium, Carbon dioxide and water vapor. C) Ammonia, Carbon dioxide and Nitrogen gas. 2. A) B) C) Which of the following probably gave rise to the complex life for known today? Protocells Prokaryotic cells Eukaryotic cells 3. Endosymbiosis is believed to have the evolutionary origins of to organelles found within living cells. Which of the following are the two organelles? A) The mitochondria and chloroplasts found within living cells. B) The mitochondria and the ribosome’s found within living cells. C) The chloroplasts and the Golgi apparatus. 4. The rate of evolution is undecided however two theories are widely accepted. Which of the following are the two excepted theories? A) The theory of Gradualism and Actualism. B) The theory of Punctuated Equilibrium and Gradualism. C) The theory of Actualism and Punctuated Equilibrium. 5. A) B) C) Which of the following is not true to the theory of Punctuated Equilibrium? Slow incremental changes occur within species. Intermediate species are rare. Speciation is isolated. 6. A) Which of the following describes Divergent evolution? Two groups of species act as selective agents to drive the evolution of the other species. Species evolve similarly because they are subject to the same environmental processes. Species begin to develop increasingly different traits usually seen through their phenotypes. B) C) 7. A) B) C) Diagrams that are used to group organisms related to common lineage are called? Pie charts Cladograms Phylogenic charts 8. A) B) C) Which of the following are included in the theory of Gradualism? Transitional forms within diverging species could be seen through the fossil record. Initial spurts of evolution followed by period of little or no change. Rapid evolution occurs. 9. Species within the same environment can develop similar phenotypes due to the mutual selective pressures. Which evolution pathway is this representative of? A) Parallel Evolution B) Coevolution C) Convergent Evolution 10. Through gradual change in the lineage of a certain species, this evolutionary pattern is seen. A) Adaptive Radiation B) Divergent Evolution C) Phyletic Evolution Part B; True or False 1. Organisms that share traits suggest that they have a common ancestor. 2. Species that are independent of each other will experience coevolution. 3. Adaptive Radiation is seen when an originating species give rise to a number of succeeding species over generations. 4. Primordial earth possessed at stable environment free off radio activity, lightening storms and volcanic activity. 5. Heterotrophic organisms developed before chemoautotrophic organisms.