EBK CAMPBELL BIOLOGY IN FOCUS
2nd Edition
ISBN: 8220101459299
Author: Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 30, Problem 13TYU
FOCUS ON EVOLUTION
With respect to sexual reproduction, some plant species are fully self-fertile, others are fully self-incompatible, and some exhibit a “mixed strategy” with partial self-incompatibility. These reproductive strategies differ in their implications for evolutionary potential. How might these three strategies fare in a small founder population
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Flowers whose throats (nectaries) are too long for hummingbirds to reach their nectar are unlikely to be pollinated (nectar reward isn't available) and therefore the flower is unlikely to reproduce. But if the nectaries are too short, hummingbirds can get their nectar without pollinating them because they don't reach in far enough to touch the pollen-carrying anthers, thus no reproduction for the flower. Flowers evolve with an intermediate length of nectaries. This is an example of what sort of selection?
Group of answer choices
Disruptive
Stabilizing
Directional
Sexual
Course: Botany
In stable populations, ones that are neither increasing nor decreasing in abundance (e.g., there are a million trees now and there will be a million trees a thousand years from now), about how many of a plant’s seeds survive and grow to adulthood, being able to replace it when it dies? If during the plant’s lifetime it produces 100,000 seeds, how many do not survive, do not grow, and cannot replace it when it dies. (Hint: Do not think of humans, as we are an increasing population, not a stable one. Almost all our children survive, but that is not true of any other species.) Answer and explain briefly.
The drooping, bell-like flower Aquilegia canadensis is adapted for cross-pollination. However, if the plant has not been pollinated previously, self-pollination can occur. However, if cross pollination occurs after self-pollination takes place, the pollen from cross pollination reaches the style before the pollen from self-pollination. Using course concepts and vocabulary 1) Provide a reasoning for this phenomenon. 2) Would this adaptation for reproduction be beneficial for the plant?
Chapter 30 Solutions
EBK CAMPBELL BIOLOGY IN FOCUS
Ch. 30.1 - WHAT IF? If flowers had shorter styles, pollen...Ch. 30.1 - WHAT IF? In some species, sepals look like petals,...Ch. 30.1 - Prob. 3CCCh. 30.2 - Prob. 1CCCh. 30.2 - Prob. 2CCCh. 30.2 - Self-fertilization, or selfing, seems to have...Ch. 30.3 - Prob. 1CCCh. 30.3 - Why does Bt maize have less fumonisin than non-GM...Ch. 30.3 - WHAT IF? In a few species, chloroplast genes are...Ch. 30 - A seed develops from an A. ovum B. embryo. C....
Ch. 30 - A fruit is a A. mature ovary. B. B . mature ovule....Ch. 30 - Double fertilization means that A. flowers must be...Ch. 30 - Golden Rice A. is resistant to various herbicides,...Ch. 30 - Which statement concerning grafting is correct? A....Ch. 30 - Some dioecious species have the XY genotype for...Ch. 30 - A small flower with green petals is most likely A....Ch. 30 - The pollen produced by wind-pollinated plants is...Ch. 30 - The black dots that cover strawberries are...Ch. 30 - DRAW IT Draw a flower and label the parts.Ch. 30 - SCIENTIFIC INQUIRY Critics of GM foods have argued...Ch. 30 - SCIENCE, TECHNOLOGY, AND SOCIETY People have...Ch. 30 - FOCUS ON EVOLUTION With respect to sexual...Ch. 30 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 30 - SYNTHESIZE YOUR KNOWLEDGE This colorized SEM shows...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Why is it unlikely that two neighboring water molecules would be arranged like this?
Campbell Biology (11th Edition)
Figure 1.18 In the example below, the scientific method is used to solve an everyday problem. Which part in the...
Concepts of Biology
Your bore cells, muscle cells, and skin cells look different because a. different kinds of genes are present in...
Campbell Essential Biology (7th Edition)
Some people compare DNA to a blueprint stored in the office of a construction company. Explain how this analogy...
Biology: Concepts and Investigations
On what molecule does the anticodon appear? Explain the role of this molecule in protein synthesis.
Human Physiology: An Integrated Approach (7th Edition)
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
- Sexual reproduction in plants provides genetic variation. What are the benefits of this genetic variation? O If a population is presented with a rapid change in the environment or a chronic new pathogen or herbivore, then genetic variability would increase the chances of survival of the population. O Sexual reproduction produces less genetic variations which enables a population to co-evolve with other organisms in it's ecosystem. O Sexual reproduction reduces genetic variations which enables a population to take advantage of different resources in it's ecosystem enabling it to exist in a the same niche as others that use the original resources. O Sexual reproduction will always produce a more fit organism. A XE A AY9 Week9_ng....xlsx Week 9 Pre-lab.pdf 10.7591 978150... A MacBook Air Copy of Lab 9 A....pdfarrow_forwardWhen tomatoes are fully ripe, they develop bright red skins. William recently built a garden and decided to investigate tomato reproduction. He found that green tomatoes (not fully ripe) have an 18% chance of germinating while red tomatoes (fully ripe) have a 78% chance of germinating. Based on the data provided from the investigation, explain what characteristic(s) contributes to the probability of the tomatoes reproductive success and what factors (genetic or environmental) might impact the growth and development of the tomatoes. Answer should be based on : Claim: includes the idea that characteristic animal behaviors or specialized plant structures affect the probability of successful reproduction. Evidence: supports claim including: -behaviors and/or structures that increase the probability of reproduction -cause and effect relationship between the behavior/structure and the successful reproduction of organisms that have them -plant reproduction and the animal behaviors…arrow_forwardAn alternation of generation life cycle in plants is advantageous because: each generation is morphologically similar. it protects reproductive structures. the gametes fuse in open water. it is haploid-dominant.arrow_forward
- Over evolutionary time, Yucca moths developed a specialist mutualism with Yucca plants. Select all the statements that reflect EITHER costs or benefits of forming this specialist mutualism The highly specialized relationship with Yuccas and Yucca Moths reduces potential competition with other pollinators The highly specialized relationship with Yuccas and Yucca Moths increases potential competition with other pollinators Yucca moths can become locally extinct if Yucca plants are removed or die The fitness of Yucca plants would be dramatically reduced if a pesticide was sprayed killing Yucca moths none of the abovearrow_forwardIntraspecific competition is a competition between members of the same species and is commonly observed in crop plants. Table 6.2 shows the results of a greenhouse experiment which examined the effects of density on the germination and growth of barley. Plants were grown for two weeks in 10- cm diameter pots kept in identical environmental conditions and watered regularly. At the end of the experiment the plants were cropped by cutting the stems at the soil surface. Explain why knowledge of the effects in density is important to the crop farmer.arrow_forwardThe following graph depicts the relationship between the mean flower depth of Zaluzianskya microsiphon plants and the proboscis length of its long-tonged fly Disa nivea pollinator in a specific region. Zaluzianskya microsiphon O Disa nivea 60- 50 40- 30 20- 10 10 20 30 40 50 Mean fly proboscis length (mm) Based on this correlation, do you think these two species are coevolving? Why or why not? And based on the geographic mosaic theory, would you consider the region were the plants and flies live a cold or a hot spot? Explain your answer. Mean flower depth (mm)arrow_forward
- In early spring, Dr. Tom Wilson notices that there is an equal distribution of long and short stemmed buttercups in the vacant lot across the street from his house as well as in his own backyard. In late summer he notices that there are mostly long stemmed buttercups in the lot, but mostly short stemmed buttercups in his yard. These observations are examples of what biological principle? Develop a hypothesis to explain Dr. Wilson's observations.arrow_forwardthe graph is depicting the size of eggs and number of eggs for the mycalesis terminus butterfly. the right of the graph represents the mass of the eggs (solid blue) and the left side represents the number of eggs (striped blue) Describe one realistic difference between host plants that might be affecting the numbers and sizes of eggs that a female lays on these plants. Suppose the ability of a female to adjust her egg and clutch size is an adaptation in these butterflies. Based on the difference between host plants that you identified in Part C, describe and explain why that difference would impact how a female adjusts the size or number of eggs (choose only one of these). Your answer just needs to be possible, not necessarily true.arrow_forwardThe pineapple plant that is growing here is through vegetative reproduction (asexual reproduction). Unlike sexual reproduction, in asexual reproduction there is no genetic variation. True Falsearrow_forward
- The Problem: Bean beetles, Callosobruchus maculatus, get their lifetime nutrition from the bean seeds (family Fabaceae) on which their mother lays her eggs. The specific bean on which each egg is laid determines the future success of the larva that develops from that egg. Choosing where to lay an egg is the most important decision a female bean beetle will make for her offspring, yet even within one bean species the seeds available may be very different in quality. Seeds vary in size (even if from the same plant), so the amount of resource available to larvae on different beans will not be the same. Seed mass may vary by as much as 50% among mung beans purchased in a local store, a species on which Callosobruchus develops normally and may complete its lifecycle. Given the problem described above, what do you predict if the null hypothesis is true? If beans of various size are tested, then there will be no difference in larval success on beans of different sizes.…arrow_forwardThe Problem: Bean beetles, Callosobruchus maculatus, get their lifetime nutrition from the bean seeds (family Fabaceae) on which their mother lays her eggs. The specific bean on which each egg is laid determines the future success of the larva that develops from that egg. Choosing where to lay an egg is the most important decision a female bean beetle will make for her offspring, yet even within one bean species the seeds available may be very different in quality. Seeds vary in size (even if from the same plant), so the amount of resource available to larvae on different beans will not be the same. Seed mass may vary by as much as 50% among mung beans purchased in a local store, a species on which Callosobruchus develops normally and may complete its lifecycle. What alternate hypothesis could be posed given the data described in The Problem? Beetles are not selective in laying eggs on surfaces Bean quality is an important factor in future success of beetle larva.…arrow_forwardThe Problem: Bean beetles, Callosobruchus maculatus, get their lifetime nutrition from the bean seeds (family Fabaceae) on which their mother lays her eggs. The specific bean on which each egg is laid determines the future success of the larva that develops from that egg. Choosing where to lay an egg is the most important decision a female bean beetle will make for her offspring, yet even within one bean species the seeds available may be very different in quality. Seeds vary in size (even if from the same plant), so the amount of resource available to larvae on different beans will not be the same. Seed mass may vary by as much as 50% among mung beans purchased in a local store, a species on which Callosobruchus develops normally and may complete its lifecycle. During what stage do beetles find the majority of their nutrition? tadpole larval juvenile adultarrow_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 Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Animal Adaptations for Kids, Learn about physical, life cycle, and behavioral adaptations of animals; Author: Learn Bright;https://www.youtube.com/watch?v=m2MibjJgyjs;License: Standard youtube license