Cambell Biology 11e Vol1 For Utah Valley University Ch 1-25
11th Edition
ISBN: 9781323691519
Author: Urry
Publisher: PEARSON
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Chapter 38, Problem 9TYU
Summary Introduction
To determine: How self-incompatible species are in severe population bottleneck compared to self-fertile species.
Concept introduction: Self-incompatibility is a genetic mechanism in
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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....pdf
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 38 Solutions
Cambell Biology 11e Vol1 For Utah Valley University Ch 1-25
Ch. 38.1 - Distinguish between pollination and fertilization.Ch. 38.1 - Prob. 2CCCh. 38.1 - MAKE CONNECTIONS Does the life cycle of humans...Ch. 38.2 - What are three ways that flowering plants avoid...Ch. 38.2 - Prob. 2CCCh. 38.2 - Prob. 3CCCh. 38.3 - Compare traditional plant-breeding methods with...Ch. 38.3 - Why does Bt maize have less fumonisin than non-GM...Ch. 38.3 - WHAT IF? In a few species, chloroplast genes are...Ch. 38 - What changes occur to the four types of floral...
Ch. 38 - Prob. 38.2CRCh. 38 - Prob. 38.3CRCh. 38 - A fruit is (A) a mature ovary. (B) a mature ovule....Ch. 38 - Prob. 2TYUCh. 38 - Double fertilization means that (A) flowers must...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - A small flower with green petals is most likely...Ch. 38 - The black dots that cover strawberries are...Ch. 38 - DRAW IT Draw and label the parts of a flower.Ch. 38 - Prob. 9TYUCh. 38 - Prob. 10TYUCh. 38 - SCIENCE, TECHNOLOGY, AND SOCIETY Humans have...Ch. 38 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 38 - SYNTHESIZE YOUR KNOWLEDGE This colorized SEM shows...
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- 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_forwardBased on this evidence, is it likely that burdock would reproduce as much if it didn’t have specially structured seeds? (a) it is most likely that it would still reproduce, but the offspring would probably be located much closer together (b) there is not enough information to speculate about how well burdock plants reproduce (c) no, there wouldn’t be as much burdock without its special structures (d) Yes, burdock would spread just as well regardless of the design of its seed podsarrow_forwardEuropean honeybees as their name suggests originated in Europe but have now spread to all continents except Antarctica. They pose an added threat to many native bee species already at risk of declining numbers or even extinction due to increasing urbanization. A research conducted in Australia has very recently published in the Biological Journal of the Linnean Society. According to the study, a competition between the native bees and the introduced European honeybee is particularly intense in residential gardens dominated by non-native flowers (the native bees have co- evolved to forage on) and occurred when the bees shared the same flower preferences. European honeybees, being very abundant, and effective foragers, with the ability to exploit a wide range of flowers, can outcompete native bees for nectar and pollen resources. In this condition, what would you suggest rescuing the native bees as a biotechnologist? Justify your reasoning.arrow_forward
- Which of these is an example of a key innovation? A caterpillar of a butterfly species provides honey to an ant colony in order to receive protection and care. A founding population of honeycreepers evolves beaks capable of cracking the seed of a tree species in their new habitat. A new flower color morph arises in a plant population, but an associated pollinator does not distinguish flowers by color. Co-occurring diploid species of wheat and goatgrass hybridize to form a viable tetraploid offspring that can no longer breed with its parents.arrow_forwardSexual vs. Asexual Reproduction: Which statement below is not true about asexual reproduction in plants. Less energy needed for reproduction as it is strictly mitosis, no sexual organs or gametes need to be produced. O If the parent plant with it's genome did well in a location then a clone will do equally as well in the same location. Reproduction is seasonal and will only take place once a year. O Vegetative structures may be used to go through dormancy periods (bulbs, tubers,etc). X= A A AY9 Week9_ng....xlsx Week 9 Pre-lab.pdf 10.7591 A MacBook Air y of Lab 9 A....pdfarrow_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
- Consider why there might be natural selection for poisonous plants to warn potential herbivores with bright colors, but why there seems to be no similar selective pressure for poisonous mushrooms to do the same. Which of the following best explains this difference? a) Fungi, like mushrooms, do not rely on photosynthesis and hence do not need to attract or warn herbivores with bright colors. Plants have a symbiotic relationship with herbivores, which is not the case for mushrooms. Mushrooms are typically more toxic than plants, so there is no need for them to develop warning colors. Most of a fungus's body is the mycelium which exists underground, hence consumption of the above-ground mushroom cap represents a comparatively smaller fitness cost than for plants, whose vital photosynthetic structures can be consumed by herbivores.arrow_forwardUnder what conditions should natural selection favor production of many offspring versus the production of a few well-provisioned offspring?arrow_forwardIn wild columbine, flower morphology encourages crosspollination. However, during the middle of the receptive period of the stigma, self-pollination can occur if the flower was not previously pollinated. If cross-pollination occurs after selfpollination, then that pollen reaches the base of the style before the self-pollen. Discuss the adaptive significance of this reproduction strategy.arrow_forward
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