Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 6TYK
CAUTION According to data presented in this chapter, which one ofthe following statements is correct?
a. When individuals change in response to challenges from the environment, their altered traits are passed on to offspring.
b. Species are created independently of each other and do not change over time.
c. Populations–not individuals–change when natural selection occurs.
d. The traits of populations become more perfect over time.
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Which of the following statements about natural selection is a misconception?
a.Most species don't produce more offspring than the environment can support
b.Natural selection acts on heritable variations in a population
c.Natural selection involves differential reproductive success
d.Natural selection occurs as a result of competition among individuals in a population
e.In natural selection, traits that are favoured depend on current environmental conditions
1) What does the term Natural Selection mean?
Select one:
a.The number and relative frequency of alleles present in a particular population.
b.The process through which individuals with certain traits tend to produce more surviving offspring that individuals without those traits.
c. Any change in the hereditary material of an organism.
Chapter 25 Solutions
Biological Science
Ch. 25 - True or false? Some trails are considered...Ch. 25 - CAUTION Why does the presence of extinct forms and...Ch. 25 - 3. Trails that are derived from a common ancestor,...Ch. 25 - How can biological fitness be estimated? a....Ch. 25 - 5. CAUTION According to data presented in this...Ch. 25 - Some biologists summarize evolution by natural...Ch. 25 - Prob. 9TYUCh. 25 - 9. The average height of humans in industrialized...Ch. 25 - Prob. 16TYPSSCh. 25 - Prob. 3TYK
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- When taking the question, it would appear as: Consider global warming, a continual gradual increase in average temperatures. How might you expect this to affect natural selection? A.environmental changes are unpredictable, and natural selection is a random process, so it is difficult to predict outcome B.species from warmer climates are likely to expand their ranges into higher latitudes C.traits that increase reproductive success under warmer temperatures are likely to increase in frequency in a population D.the stress caused by higher temperatures will increase mutation ratesarrow_forwardWhich of the following most accurately describes mutations? a. They typically have immediate and impactful evolutionary effects on populations. b. They are required for all populations to evolve. c. They are always deleterious. d. They occur so infrequently that most populations to harbor very little variation.arrow_forwardAlfred Russel Wallace and Charles Darwin argued that evolution by means of natural selection involves all of the following steps except: a. variation is present in all species b. species can produce more offspring than the environment can sustain c. all individuals within a species have equal chances to improve their fitness d. those individuals that are more fit will survive and reproduce in the greatest numbers e. over time, the species will evolve as the more fit individuals replace the less fit individualsarrow_forward
- Indicate 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_forwardNatural selection occurs when which of the following conditions are met? Group of answer choices a.Variations between individual organisms lead to differential survival chances. b.The conditions in an ecosystem support a wide range of living organisms c.Individual organisms depend on each other to obtain available resources. d. Habitat and nutrient resources in an area are plentiful over a long period of time.arrow_forwardWhich statement is true? Explain your answer. A. Natural selection acts on populations, not on individuals. B. Mutations care the raw material for natural selection. C. Evolutionary change occurs at the level of the individual. D. Developmental change is a population-level process. E. Species are simply those organisms that share similar phenotypes.arrow_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_forwardWhich of the following is NOT a correct statement regarding the neutral-mutation explanation for the high levels of genetic variation? A. Most genetic variation observed is adaptively neutral. B. Natural selection plays a lesser role in maintaining genetic variation. C. When natural selection occurs it leads to a decrease in genetic variation. D. Genetic variation is maintained mainly via the random effects of genetic drift.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_forward
- What is the difference between evolution, natural selection, and artificial selection? A. Evolution is a genetic change in a population over time which can occur through natural selection. Artificial selection is the differential reproduction of individuals in a population to promote the characteristics chosen by the breeder. B. Natural selection is the change of allele frequencies in a population over time. Evolution leads to differential survival and reproduction of individuals. Artificial selection has produced domesticated animals and plants. C. Evolution is a mechanism of artificial selection. Natural selection is a form of artificial selection in which nature selects the characteristics that are most beneficial to a species. D. Artificial selection is a mechanism of evolution and is the main process of domesticating animals and plants for human use. Natural selection is the same as evolution.arrow_forwardAlternatively, selection may be performed during mating, where mating is done after a selection process of one of the sexes. The surviving individuals can pass on their (1) to the next generation. When these variations are sustained over a long time and the population changes so that it can no longer (2) with the parent population, a new species is said to have evolved.arrow_forwardWhat is neutral evolution? A. Neutral evolution does not exist. B. When certain genes are present or absent in populations due to natural selection (they are advantageous or disadvantageous). C. When certain genes are present or absent in populations regardless of selection (they are not advantageous or disadvantageous). D. When certain genes are present or absent in populations due to sexual selection (they are selected for by the opposite sex).arrow_forward
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