Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 51.1, Problem 2CC
MAKE CONNECTIONS Ø How is the lunar-linked rhythm of fiddler crab courtship similar in mechanism and function to the seasonal timing of plant flowering? (See Concept 39.3.)
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MAKE CONNECTIONS What examples of plantreproduction are most similar to asexual reproductionin animals? (See Concept 38.2.)
MAKE CONNECTIONS In seed plants, how might retaining the gametophyte within the sporophyteaffect embryo fitness? (See Concepts 17.5, 23.1, and 23.4 to review mutagens, mutations, and fitness.)
CCASE
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A gardener crosses two plants and observes that the offspring appear different from the parents. The diagram shows the plants.
parents
offspring
Which statement supports this observation?
O The plants reproduce asexually, and the offspring develop new genes with age.
O The plants reproduce sexually, and the offspring exchange genes with each other.
O The plants reproduce asexually, and the offspring receive all their genes from a single parent
O The plants reproduce sexually, and the offspring receive a unique combination of genes from both parents.
Chapter 51 Solutions
Campbell Biology
Ch. 51.1 - WHAT IF? Suppose you exposed various fish species...Ch. 51.1 - MAKE CONNECTIONS How is the lunar-linked rhythm...Ch. 51.1 - How might associative learning explain why...Ch. 51.2 - Prob. 1CCCh. 51.2 - Prob. 2CCCh. 51.2 - Why does the mode of fertilization correlate with...Ch. 51.3 - MAKE CONNECTIONS Balancing selection can maintain...Ch. 51.3 - WHAT IF? Suppose an infection in a common...Ch. 51.3 - Prob. 3CCCh. 51.4 - Prob. 1CC
Ch. 51.4 - Prob. 2CCCh. 51.4 - How is migration based on circannual rhythms...Ch. 51 - Prob. 51.1CRCh. 51 - In some spider species, the female eats the male...Ch. 51 - Prob. 51.3CRCh. 51 - Prob. 51.4CRCh. 51 - Prob. 1TYUCh. 51 - Prob. 2TYUCh. 51 - Female spotted sandpipers aggressively court males...Ch. 51 - Prob. 4TYUCh. 51 - Although many chimpanzees live in environments...Ch. 51 - Prob. 6TYUCh. 51 - Level 3: Synthesis/Evaluation 7. DRAW IT You are...Ch. 51 - EVOLUTION CONNECTION We often explain our behavior...Ch. 51 - SCIENTIFIC INQUIRY Scientists studying scrub jays...Ch. 51 - SCIENCE, TECHNOLOGY, AND SOCIETY Researchers are...Ch. 51 - WRITE ABOUT A THEME: INFORMATION Learning is...Ch. 51 - SYNTHESIZE YOUR KNOWLEDGE Acorn woodpeckers...
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- EVOLUTION CONNECTION In general, light-sensitivegermination is more pronounced in small seeds compared withgermination of large seeds. Suggest a reason whyarrow_forwardThe 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?arrow_forwardQuestion: ANSWER QUICK!! Is there an analogous structure in horsetails? If so, what is it?arrow_forward
- MAKE CONNECTIONS In somepea plant crosses, the plants areself-pollinated. Is self-pollinationconsidered asexual or sexualreproduction? Explain.(See Concept 13.1.)arrow_forwardIn the experiment conducted to test why individuals in the tree species Fuschsia excorticata retain flowers after they turn red even though the trees pollinate and offer a nectar reward only when flowers are green (Figure attached 10.28 first tested the 'pollinator-attraction' hypothesis that red flowers attract pollinators: once drawn to a tree, pollinators could forage on the green flowers still present, increasing overall pollination efficiency. Please assess the lowercase-Roman-numeral-labelled statements that appear immediately below and click the uppercase-letter-labelled response that appears below and conveys the most accurate information. i. If the pollinator-attraction hypothesis were correct, then green flowers surrounded by red flowers should receive more pollen than should green flowers surrounded by only green flowers. ii. The prediction in statement i could be tested by removing red flowers from some trees, forming one experimental group, and leaving red flowers on…arrow_forward. MAKE CONNECTIONS What type of feedback processis exemplified by the production of ethylene during fruitripening? Explain. (See Figure 1.10.)arrow_forward
- Suitable hypothesis that will predict answers for the following: A) what is the rate of germinating peas versus non-germinating peas. B) what is the effect of temperature on germinating peas?arrow_forwardConsider the following statements and indicate whether each presents an idea of Jean- Baptiste Lamarck, of Charles Darwin or of both scientists. On the blank before the statement, write L for Lamarck, D for Darwin or B for both. 1) An organism directs its own adaptations because of an inborn urge to be perfect (that is, to be better suited to the environment). 2) Individuals do not evolve, but populations do. 3) Individuals in a population exhibit variation in their traits, such that no two individuals are exactly alike. 1 4) Many different kinds of living things are adapted to their environment. 5) Members of a population who are better adapted to the environment have higher chances of survival and reproduction. 6) Parents pass on their traits to their offspring. Carrow_forwardOrchid flower, Ophrys co-evolves to maintain resembelance of its petal to female bee. Explain how and why does it do so?arrow_forward
- Biosynthesis of nectar and nutrient-rich pollen is energetically very expensive for a plant. Yet, plants funnel large amounts of energy into animal pollination. What are the evolutionary advantages that offset the cost of attracting animal pollinators?arrow_forwardWhat are homeotic genes? Please exaplain ow they control the sequence of whorl development in flowers according to the ABCDE model.arrow_forwardDiscuss Concepts Baobab trees (Adansonia spp.) store water in their trunks (stems) and, although the trees have leaves, considerable photosynthesis also occurs in the trunks. Cacti too have water-storing, photosynthetic stems. In terms of evolutionary adaptation, what does this information suggest about cacti and baobabs?arrow_forward
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