PEARSON ETEXT FOR CAMPBELL BIOLOGY
12th Edition
ISBN: 9780135988046
Author: Urry
Publisher: PEARSON
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Chapter 30.3, Problem 3CC
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Clausen and colleagues proposed two hypotheses to explain this variation within a species: (1) There are genetic differences between populations of plants found at different elevations. (2) The species has developmental flexibility and can assume tall or short growth forms, depending on local abiotic factors. If you had seeds from yarrow plants found at low and high elevations, what experiments would you perform to test these hypotheses?
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Chapter 30 Solutions
PEARSON ETEXT FOR CAMPBELL BIOLOGY
Ch. 30.1 - What features not present in seedless plants have...Ch. 30.1 - Prob. 2CCCh. 30.1 - WHAT IF? If a seed could not enter dormancy, how...Ch. 30.2 - Use examples from Figure 30.7 to describe how...Ch. 30.2 - Explain how the pine life cycle in Figure 30.4...Ch. 30.2 - Prob. 3CCCh. 30.3 - It is said that an oak is an acorns way of making...Ch. 30.3 - Compare and contrast a pine cone and a flower in...Ch. 30.3 - WHAT IF? Do speciation rates in closely related...Ch. 30.4 - Explain why plant diversity can be considered a...
Ch. 30.4 - Prob. 2CCCh. 30 - Describe how the parts of an ovule (integument....Ch. 30 - Although there are fewer Ihan 1,000 spedes of...Ch. 30 - Explain why Darwin called the origin of...Ch. 30 - Prob. 30.4CRCh. 30 - Where in an angiosperm would you find a...Ch. 30 - Prob. 2TYUCh. 30 - Prob. 3TYUCh. 30 - Which of thc following is not a characteristic...Ch. 30 - Gymnosperms and angiosperms liave tlie following...Ch. 30 - DRAW IT Use the letters a-d to label where on the...Ch. 30 - EVOLUTION CONNECTION The history of life has been...Ch. 30 - Prob. 8TYUCh. 30 - WRITE ABOUT A THEME: ORGANIZATION Cells arc the...Ch. 30 - Prob. 10TYU
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- MAKE CONNECTIONS Explain how natural selection could increase the resemblance of a harmlessspecies to a distantly related harmful species. In addition to selection, what else could account for a harmlessspecies resembling a closely related harmful species? (See Concept 22.2.)arrow_forwardWith your own terms -Define Haldane’s rule -Define allopatric speciation - Define sympatric speciation -Define parapatric speciation - How does hermaphroditism allow reproductive assurance?..arrow_forwardWhy are species of weedy plants more likely to be r-selected than K-selected? Why are most species with large body size K-selected? What other general patterns of lifestyle are associated with either r- or K-selection?arrow_forward
- Part C Maize Genetics Seedling Characteristics In corn, tall (7) is dominant over dwarf (t). Predict what phenotypic ratio of tall to dwarf plants you expect to observe. 18. What is your expected monohybrid F2 phenotypic ratio Your null hypothesis is that there is no difference between your observed ratio and the expected ratio. Your alternative hypothesis is that there is a difference between your observed ratio and the expected ratio. Observe the flats of seedlings grown from F2 seeds resulting from crossing F₁ hybrids. Monohybrid Cross: 19. Record data below. Number of tall seedlings Number of dwarf seedlings. 20. What are the phenotypes of the F2 generation Of the F₁ generation Of the parents 66arrow_forwardHello! I need help. Thanks! I'm pretty sure there's more than 1 correct answer.arrow_forwardImagine that researchers are studying 2 populations of a hypothetical flowering plant, Darwinius beardii. Individual plants of population "A" grow to an average height of 25 cm, while those of population "B" average 40 cm. The flowers of population "A" are light purple and open in mid-April, while those of population "B" are dark purple with white spots and open in early May. These 2 populations are geographically separated by a large river, and geological and molecular genetic evidence suggests that they have been separated for at least 10 million years, during which time evolutionary divergence has occured. Yet, when individuals from each population are brought into the lab, they readily mate with individuals of the other population. Under which species concept(s) would the plants of the 2 populations be considered the SAME species? O A. Biological species concept O B. Phenetic species concept O C. Phylogenetic species concept O D. both the Phenetic and Phylogenetic species conceptsarrow_forward
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