Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Textbook Question
Chapter 16, Problem 2SQ
Evolution ________.
- a. is change in a line of descent
- b. is the same as natural selection
- c. is the goal of natural selection
- d. explains the origin or life
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Chapter 16 Solutions
Biology: The Unity and Diversity of Life
Ch. 16 - Discovery of Iridium in the KPg Boundary Layer In...Ch. 16 - Discovery of Iridium in the KPg Boundary Layer In...Ch. 16 - The number of species on an island depends on the...Ch. 16 - Evolution ________. a. is change in a line of...Ch. 16 - The process in which environmental pressures...Ch. 16 - The dinosaurs died out ______ million years ago.Ch. 16 - The bones of a birds wing are similar to the bones...Ch. 16 - A trait is adaptive if it ______. a. arises by...Ch. 16 - Darwin and Wallace proposed the hypothesis that...Ch. 16 - Prob. 8SQ
Ch. 16 - Which of the following is not a fossil? a....Ch. 16 - Prob. 10SQCh. 16 - If the half-life of a radioisotope is 20,000...Ch. 16 - Prob. 12SQCh. 16 - On the geologic time scale, life originated in the...Ch. 16 - Forces that cause geologic change include _____...Ch. 16 - Match the terms with the most suitable...Ch. 16 - Natural selection makes an adaptive trait more...Ch. 16 - Radiometric dating does not measure the age of an...Ch. 16 - If you think of geologic time spans as minutes,...
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- Variation among pre-cells was due to ________. A. the bottleneck effect B. natural selection C. mutation D. genetic drift 82.arrow_forwardWhich of the following is false regarding artificial selection? B. Artificial selection is responsible for creating new varieties of plants and animals D. Many if not most organisms created through artificial selection could not survive without humans E. None of the above---all are true statements A. Darwin's understanding of artificial selection helped him arrive at his theory of evolution by natural selection C. Artificial selection is caused through the process of selective breedingarrow_forwardWhy is evolution considered a scientific theory? A. It is controversial B. There is not much edvidence to back it up C. Scientists are not really sure if evolution is still occuring today d. There is Lots of data to support evolution and no evidence that it does not occur e. it is not possible to really test whether evolution happensarrow_forward
- Name Date 4. (5:17) Which of the following correctly describes a principle of natural selection? A. Variation in phenotype is what distinguishes one species from another. B. Individual members of a species are only able to pass down favorable traits. C. Populations produce more offspring than the environment can support. D. Only individuals that don't have unfavorable traits are able to reproduce. 5. (5:59) Which of the following is key to Darwin's theory? A. Individuals evolve over their lifetime as their environments change. B. Species evolve over generations as certain individuals reproduce. C. Humans evolve over their lifetime while animals evolve over generations. 6. (10:13) In your own words, explain the difference between directional selection, stabilizing selection, and disruptive selection. 7. (11:24) In your own words, explain how sexual selection also contributes to evolution. 8. (12:21) What is one question you still have about natural selection?arrow_forwardIndicate whether each of the following statements about natural selection is true (T) or false (F). Put either a T or an F in each box provided. a. Natural selection alters a population's gene pool b. Natural selection creates new alleles which increase the reproductive success of their owners c. Natural selection favors traits which it anticipates will be beneficial to a species in the future d. Natural selection can at times be observed in nature over the course of just a few decades e. Natural selection acts directly on an individual's phenotypearrow_forward______is the original source of new alleles. a. Mutation c. Gene flow b. Natural selection d. Genetic driftarrow_forward
- Which of the following best explains the role mutations play in natural selection?A. Most mutations are negative and result in the extinction of the entire speciesB. Mutations may appear for one or two generations, but they usually disappear quickly.C. If the environment changes, an existing organism develops a mutation that will help them to survive.D. Some mutations give individuals an advantage in their environment, allowing them to survive and reproduce.D is my answer is it correct?arrow_forwardWhat is meant by the following statement? "When mutation is random, natural selection is not." Mark all correct answers Group of answer choices A. A mutation is caused by changes in the environment. B. Natural selection can favor some mutations and not others. C.Mutations for advantageous traits are more likely to be passed on to the next generation. D.Selection can change depending on the environment.arrow_forwardAddress (don’t just say “true” or “false”) the following myths about evolution. Limit your answers to 1-2 sentences each: a. Evolution tells us how life began b. Evolution says animals do things for the good of their species. c. If evolution were true, they would call it a fact, not a theory.arrow_forward
- Which of Darwin's five 'theories' was something that he strongly emphasized but that we now think is a bit over emphasized on his part. Group of answer choices A. evolution has happened B. evolution is a process of change and splitting C. evolution is a very slow and gradual process D.all life has a common ancestor E.natural selection is the primary force causing evolutionarrow_forwardDON'T EXPLAIN, JUST GIVE THE ANSWER According to Charles Darwin, organic evolution is "descent with modification," which simply means Select one: A. inherited variations decline as reproductive potential is modified. B. characteristics acquired during the lifetime of an individual are passed on to all descendants of the individual. C. the fittest always impose change on the less fit. D. populations change over time.arrow_forwardA trait is adaptive if it_____ . a. arises by mutation c. is passed to offspring b. increases fitness d. occurs in fossilsarrow_forward
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