Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 18, Problem 2TYU
Evolution is the accumulation of genetic changes within _______________ over time. (a) individuals (b) populations (c) communities (d) a and b (e) a and c
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Natural selection favored dark-colored fur in the rock pocket mouse. The selective force on the mouse population was ________.
1 - Predators
2 - Genetic mutations
3 - Rock color
4 - Availability of food for the rock pocket mice
a) 1 only
b) 1 and 3
c) 2 and 3
d) 1, 3 and 4
Indicate whether each statement presents an idea of Jean-Baptiste Lamarck, of Charles Darwin, or of Both Scientist
Evolution is a process of___
in a population through___
variation over___
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Chapter 18 Solutions
Biology (MindTap Course List)
Ch. 18.1 - Prob. 1LOCh. 18.1 - Prob. 1CCh. 18.1 - Prob. 2CCh. 18.2 - Prob. 2LOCh. 18.2 - Prob. 1CCh. 18.2 - Prob. 2CCh. 18.3 - Explain the four premises of evolution by natural...Ch. 18.3 - Compare the modern synthesis with Darwins original...Ch. 18.3 - Prob. 1CCh. 18.3 - Why are only inherited variations important in the...
Ch. 18.3 - What was missing in Darwins explanation of...Ch. 18.4 - Summarize the evidence for evolution obtained from...Ch. 18.4 - Define biogeography and describe how the...Ch. 18.4 - Describe the evidence for evolution derived from...Ch. 18.4 - Briefly explain how molecular biology and...Ch. 18.4 - Prob. 9LOCh. 18.4 - Prob. 1CCh. 18.4 - How can we explain that fossils of Mesosaurus an...Ch. 18.4 - How do homologous and homoplastic features provide...Ch. 18.4 - How does developmental biology provide evidence of...Ch. 18.4 - How do predator preferences drive the evolution of...Ch. 18 - Evolution is based on which of the following...Ch. 18 - Evolution is the accumulation of genetic changes...Ch. 18 - Charles Darwin proposed that evolution could be...Ch. 18 - Which of the following is not part of Darwins...Ch. 18 - The evolution of beak size in the various species...Ch. 18 - The fossil record (a) usually occurs in...Ch. 18 - In _______________ the selecting agent is the...Ch. 18 - Aardvarks, anteaters, and pangolins are only...Ch. 18 - Prob. 9TYUCh. 18 - CONNECT In what way does the modern synthesis...Ch. 18 - CONNECT What types of gene changes are most...Ch. 18 - EVOLUTION LINK The use of model organisms such as...Ch. 18 - EVOLUTION LINK Charles Darwin once said, It is not...Ch. 18 - EVOLUTION LINK Write short paragraphs explaining...Ch. 18 - EVOLUTION LINK Although most salamanders have four...Ch. 18 - INTERPRET DATA Which of the primates in Figure...Ch. 18 - Prob. 17TYU
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- All species, both past and present, are related to one another through a(n) ______ history.arrow_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_forwardBacteria that were once treatable through the application of antibiotics are now resistant to them, causing severe infections in hospital patients. This is a case of Natural Selection where __________act as the selective agent. A: humans B: Poisons C: environmental changes D: None of these answers are truearrow_forward
- Natural selection changes allele frequencies because some _________ survive and reproduce better than others. (A) alleles (B) loci (C) species (D) individualsarrow_forwardThe diversity of life is explained by the theory of evolution. Living things on Earth evolve by (1); that is, the selective survival of individuals of a species possessing a trait that increases their (2). Natural selection relies on the natural variations in a population of a species caused by (3).arrow_forwardNaked mole rats are weird mammals that live underground and can tolerate very low oxygen concentrations. Explain, using the principles of natural selection, how this particular ability evolved. Make sure you include the four steps of evolution by natural selection in your response.arrow_forward
- Life history adaptations of ___________ populations are characterized by an early age of first reproduction and short maturation time and life span. (two words, often hyphenated)arrow_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_forwardDirection: You must Answer no.10 to no. 12. Multiple Choice only. No need to explain each answer. Provide a correct letter as correct answer to each question. Zoom in the picture in order to see it clearly. Thank you in advance.arrow_forward
- Consider the following statements and indicate whether each presents an idea of Jean-Baptiste Lamarck, of Charles Darwin or of both scientists. On the blank before the statement, write L for Lamarck, D for Darwin or B for both. _____ 1) An organism directs its own adaptations because of an inborn urge to be perfect (that is, to be better suited to the environment). _____ 2) Individuals do not evolve, but populations do. _____ 3) Individuals in a population exhibit variation in their traits, such that no two individuals are exactly alike. _____ 4) Many different kinds of living things are adapted to their environment. _____ 5) Members of a population who are better adapted to the environment have higher chances of survival and reproduction. _____ 6) Parents pass on their traits to their offspring. _____ 7) Species change gradually over many generations. _____ 8) Traits that an organism acquired during its lifetime can be transmitted to its offspring.arrow_forwardDoes natural selection occur when which of the following conditions are met? 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_forwardIf we lived in a world without mutation, then we will not have evolution. 1)True 2)Falsearrow_forward
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