CAMPBELL BIOLOGY PACKAGE >UTOLEDO CUST
15th Edition
ISBN: 9781269912303
Author: Reece
Publisher: PEARSON C
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Textbook Question
Chapter 24, Problem 1TYU
The largest unit within which gene flow can readily occur is a
- (A) population.
- (B) species.
- (C) genus.
- (D) hybrid.
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The largest unit within which gene flow canreadily occur is a(A) population.(B) species.(C) genus.(D) hybrid
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If two different organisms are closely related evolutionarily, then they will (a) be similar in size. (b) share a recent common ancestor. (c) have very different DNA sequences in their genes. (d) be randomly located throughout the world.
Chapter 24 Solutions
CAMPBELL BIOLOGY PACKAGE >UTOLEDO CUST
Ch. 24.1 - Prob. 1CCCh. 24.1 - WHAT IF? Suppose two bird species live in a...Ch. 24.2 - Summarize key differences between allopatric and...Ch. 24.2 - Prob. 2CCCh. 24.2 - WHAT IF? Is allopatric speciation more likely to...Ch. 24.2 - MAKE CONNECTIONS Review the process of meiosis in...Ch. 24.3 - 1. What are hybrid zones, and why can they be...Ch. 24.3 - WHAT IF? Consider two species that diverged while...Ch. 24.4 - Speciation can occur rapidly between diverging...Ch. 24.4 - Prob. 2CC
Ch. 24.4 - Prob. 3CCCh. 24 - Explain the role of gene flow in the biological...Ch. 24 - Can factors that cause sympatric speciation also...Ch. 24 - What factors can support the long-term stability...Ch. 24 - Is speciation something that happened only in the...Ch. 24 - The largest unit within which gene flow can...Ch. 24 - Prob. 2TYUCh. 24 - Prob. 3TYUCh. 24 - Prob. 4TYUCh. 24 - Which of the following factors would not...Ch. 24 - Plant species A has a diploid chromosome number of...Ch. 24 - Prob. 7TYUCh. 24 - SCIENTIFIC INQUIRY DRAW IT In this chapter, you...Ch. 24 - Prob. 9TYUCh. 24 - Prob. 10TYUCh. 24 - WRITE ABOUT A THEME: INFORMATION In sexually...Ch. 24 - Prob. 12TYU
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- Which of the following decreases genetic variation in a population? a)natural selection b)mutation c)gene flow d)meiosis e) A and C only (Option E is said to be incorrect)arrow_forwardIn social insects, colonies often consist of a queen and workers. The workers are typicallydaughters of the queen. The queen is the only reproductive individual—the workers aresterile. a) According to Hamiton’s rule, what is the maximum ratio of cost to benefit (C/B) for theworkers in order for this system to evolve?b) Some colonies of ants have multiple queens, which can be related to different degrees.Imagine that two sisters start a colony, so that they are the mother or aunt to allworkers. What is the maximum ratio of cost to benefit (C/B) for the workers to sacrificefor their aunts?arrow_forwardWhen two organisms are very distantly related in an evolutionary sense, (a) they should have extremely similar embryonic development. (b) they must share a very recent common ancestor. (c) the sequences of DNA in their genes should be less similar (more different) than those of two more closely related organisms. (d) they should share more homologous traits than two more closely related organisms share.arrow_forward
- Gene flow is accomplished by ______ A) migration B) sexual recombination C) natural selectionD) genetic driftE) mutation Then explain why the incorrect answers are wrong.arrow_forwardIn evolutionary terms, an organism's fitness is measured by its 1. a) population rate changes due to environmental pressures 2. b) contribution to the gene pool of the next generation 3. c) rate of genetic variability across mitotically changing exons 4. d) mutation rate due to genetic drift 5. e) all of the abovearrow_forward8) What data would suggest that a species evolutionary history includes sexual selection as a mechanism that helped shape the species? A) If males and females are significantly different from each other (sexual dimporphism) B) If some males reproduce with multiple females while other males do not reproduce C) If males engage in "risky" behavior D) If males and females form different social groups (i.e. herds are formed from either males or females but not both)arrow_forward
- All evolutionary changes that allow a species to change in response to the environment are originally a result of A) beneficial DNA mutations. Eliminate B) movement to new environments where survival is easier. C) cross-breeding with other species of closely related organisms. D) adaptations that organisms make to the environment during their lifetimes. Not Gradedarrow_forwardWhich key feature of living organisms is best described as the transmission of DNA from parent to offspring? A.)Homeostasis B.)Growth C.)Response to changes D.)Inheritancearrow_forwardAll of the following are common or recurrent themes in biology except A) Organisms grow, develop, and reproduce B) Function determines structure C) Matter is recycled while energy flows through living systems D) Living organisms maintain homeostasis E) Evolutionary processes explain both the unity and adaptive diversity of life.arrow_forward
- According to Darwin’s model of evolution, evolution can only occur if there is some variation present among the individual members of a population. Which statement best describes the source of this variation among members of a species? A) individuals will vary depending on geography and climate B) variation exists because not all genes will be expressed C) variation among individuals may arise as a result of mutations in the genetic code D) variation exists because different individuals will have different access to food and other resourcesarrow_forwardAll genetic differences between all the individuals of all the different species are a result of O a) mutations O b) the need for new traits O C) None of the other answers is correct. O d) differences in the rate of translation e) differences in the rate of transcriptionarrow_forward19) Which of the following are evolutionarily most closely related? A) Kangaroo, toad, and snake are all equally related to each other B) Toad and kangaroo C) Kangaroo and snake D) Toad and snake Then explain wy the answer is correct and why the others are not.arrow_forward
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