BIOLOGY DUAL ENROLLMENT VERSION
12th Edition
ISBN: 9780136681311
Author: Urry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 30.3, Problem 3CC
WHAT IF? Ø Do
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
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?
Select the three experiments.
What data would suggest that a species evolutionary history includes sexual selection as a mechanism that helped shape the species?
If males and females are significantly different from each other (sexual dimporphism)
If males and females form different social groups (i.e. herds are formed from either males or females but not both)
If some males reproduce with multiple females while other males do not reproduce
If males engage in "risky" behavior
Aloes vs. Agaves
Describe 3 general similarities (analogous structures) you observed between Aloes & Agaves.
Now, identify a specific example -- 1 Aloe species and 1 Agave species -- that look especially similar. List their names and clearly describe how they are alike.
What environmental pressures likely drove the development of these similar traits? Explain.
Now, what makes these two families different? Fill in the table below based on the lab’s video lecture or your personal observations:
Geographic origin
Flowers (stalk length, color)
# of reproductive events
Leaf characteristics
Aloes
Agaves
Chapter 30 Solutions
BIOLOGY DUAL ENROLLMENT VERSION
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
Knowledge Booster
Learn more about
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
- With your own terms -Define Haldane’s rule -Define allopatric speciation - Define sympatric speciation -Define parapatric speciation - How does hermaphroditism allow reproductive assurance?..arrow_forwardMAKE 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_forwardWould you predict that the Pingelapesepopulation is in Hardy-Weinberg equilibrium? How would you measure this?arrow_forward
- What is variation? Give its importance. What are the possible causes of variations? Give specific examples. How would you know or identify if the cause of variation is genetic, environmental, or both? Classify these variations as to "species characteristics" or "individual characteristics". Thorns in the stalk of the rose flower Body size of ants Color of apple skin Color mosaic in San Francisco leaf Number of body segments in wormarrow_forwardWHAT IF? Suppose that two species, A and B, havesimilar appearances but very divergent gene sequences,while species B and C have very different appearancesbut similar gene sequences. Which pair of species is morelikely to be closely related: A and B or B and C? Explain.arrow_forward(see image attached) a) In what ways are floral traits similar or different between hawkmoth and bat pollination syndromes b) In what ways are floral traits similar or different between bee and bat pollination syndromes c) Which pollinator shift is more likely to lead to reproductive isolation between populations that have the ancestral pollinator and populations that have bat pollinators? a) hawkmoth to bat b) bee to bat and why? / rationalearrow_forward
- WHAT IF? Is allopatric speciation more likely to occuron an island close to a mainland or on a more isolatedisland of the same size? Explain your prediction.arrow_forwardSympatric speciation by allotetraploidy has been proposed as acommon mechanism for speciation. Let’s suppose you were interestedin the origin of certain grass species in southern California.Experimentally, how would you go about determining if some ofthe grass species are the result of allotetraploidy?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
- Fruit flies of the genus Drosophila are distributed worldwide, but 30-40% are found on Hawaiian islands. How can you explain this distribution pattern? I’m addition, most species that have been identified are almost indistinguishable from other species and yet vary few hybrids have ever been observed. How might this phenomenon be explained?arrow_forwardс C C Blue Oak (B) Oregon Oak (0) Valley Oak (V) Coast Live Oak (C) Which character(s) in the data matrix are parsimony informative? B B B Tree 1 X X B 1 A T T T T T B B 2 A A 2, 4, and 6 3 Tree 2 তত ত Use the diagrams below to: Draw the three possible unrooted trees for the four taxa in the data matrix. Map each informative character, correctly showing the changes on each tree. Circle the most parsimonious tree Please draw out your response to questions 2-4 using the template below as a guide, take a picture, and list the correct number of steps and then insert the picture below. G с G 4CCG G с G G SATIG 5 6 G 5559 G B B C X X X G C B Tree 3 Xarrow_forwardPlease help! Question: Summarize how new species can arise by explaining the differences between allopatric and sympatric isolation. Give a real example of when allopatric speciation has been observed and when sympatric speciation has been observed.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY