Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Chapter 21.8, Problem 7SC
To determine
The reason for a difference between the Lamarck’s idea and Darwin-Alfred theory of natural selection.
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Pear Deck Interact
Which statements best describe natural selection?
Use the hybrid selection model, OY = ky(1 - y)(a - by), to find the percent of the population that has the given characteristic.
dt
A research team is studying a population of snails to determine how quickly characteristic B will pass from one generation to the next. At the start of the study, 20% of the snails have characteristic B. After five generations, 81% of the population has characteristic B. Find
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%
Chapter 21 Solutions
Integrated Science
Ch. 21.1 - Prob. 1SCCh. 21.3 - Prob. 2SCCh. 21.3 - Prob. 3SCCh. 21.3 - Prob. 4SCCh. 21.3 - Prob. 5SCCh. 21.8 - Prob. 6SCCh. 21.8 - Prob. 7SCCh. 21.9 - Prob. 8SCCh. 21.9 - Prob. 9SCCh. 21.10 - Prob. 10SC
Ch. 21.11 - Prob. 11SCCh. 21.11 - Prob. 12SCCh. 21.12 - Prob. 13SCCh. 21.12 - Prob. 14SCCh. 21.12 - Prob. 15SCCh. 21 - Prob. 1CQCh. 21 - Prob. 2CQCh. 21 - Prob. 3CQCh. 21 - Prob. 4CQCh. 21 - Prob. 5CQCh. 21 - Prob. 6CQCh. 21 - Prob. 7CQCh. 21 - Prob. 8CQCh. 21 - Prob. 9CQCh. 21 - Why has Lamarcks theory been rejected?Ch. 21 - Prob. 11CQCh. 21 - Prob. 12CQCh. 21 - Prob. 13CQCh. 21 - Prob. 14CQCh. 21 - Prob. 15CQCh. 21 - Prob. 16CQCh. 21 - Prob. 17CQCh. 21 - Evolution is a fact. Evolution is a theory....Ch. 21 - Prob. 19CQCh. 21 - Prob. 20CQCh. 21 - Prob. 21CQCh. 21 - Prob. 22CQCh. 21 - Prob. 23CQCh. 21 - Prob. 1PEACh. 21 - Prob. 2PEACh. 21 - Prob. 3PEACh. 21 - Prob. 4PEACh. 21 - Prob. 1PEBCh. 21 - Prob. 2PEBCh. 21 - Prob. 3PEBCh. 21 - Prob. 4PEB
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- Which of the following statements about the "tree of life" is correct? Before Carl Woese, all cellular life forms were classified into five kingdoms: Monera, Fungi, Plants, Animals, and Protists. Using rRNA genes for phylogenetic reconstruction, Carl Woese uncovered a previously unrecognized group that was thought to be bacteria. Afterward, all cellular life forms were classified into three domains: Archaea, Bacteria, and Eucarya. It is found that the relationship among Archaea, Bacteria, and Eucarya changes, depending on which gene was used for phylogenetic reconstruction. All of the abovearrow_forwardWhich of the following statements about the "greenbeard" effect is correct? Richard Dawkins first hypothesized the existence of the "greenbeard" allele to explain why we observe some unusual phenotypes, such as green beard. According to the hypothesis, the reason why the greenbeard phenotype is selected for is because the greenbeard individuals would preferentially receive altruistic benefit from non-greenbeard individuals. The reason why the "greenbeard" hypothesis is possible is because when direct fitness and indirect fitness are in conflict, it is always the factors that increase the direct fitness that will triumph over the factors increasing the indirect fitness. The "greenbeard" effect shows that it is possible to evolve altruistic behavior toward individuals who are not genetic kin.arrow_forwardIf life is based on information, what is that information?arrow_forward
- Define biodiversity.arrow_forwardExplain why traveling up a mountain takes you through biomes similar to those you would encounter by traveling north for a long distance.arrow_forwardOn figure 21.2b, draw the relationship between offspring beak depth and parent beak depth, assuming that there is no genetic basis to beak depth in the medium ground finch.arrow_forward
- Can someone help explain this from a mathematicssl perspective? Consider a species that occupies a large, but fixed, number of islands. The distribution of the species across all islands is maintained by a balance between local extinctions and local colonization events. Devise a model for the relationship between the fraction of islands occupied by the species and time. Be clear to outline the assumptions you make and be sure to describe your key predictions.arrow_forwardSmall birds like that in (Figure 1) can migrate over long distances without feeding, storing energy mostly as fat rather than carbohydrate. Fat is a good form of energy storage because it provides the most energy per unit mass: 1.00 grams of fat provides about 9.40 (food) Calories, compared to 4.20 (food) Calories per 1.00 grams of carbohydrate. Remember that Calories associated with food, which are always capitalized, are not exactly the same as calories used in physics or chemistry, even though they have the same name. More specifically, one food Calorie is equal to 1000 calories of mechanical work or 4184 joules. Therefore, in this problem use the conversion factor 1 Cal = 4184 J. Figure 1 of 1 Part A Consider a bird that flies at an average speed of 10.7 m/s and releases energy from its body fat reserves at an average rate of 3.70 W (this rate represents the power consumption of the bird). Assume that the bird consumes 4.00 g of fat to fly over a distance do without stopping for…arrow_forwardSmall birds like that in (Figure 1) can migrate over long distances without feeding, storing energy mostly as fat rather than carbohydrate. Fat is a good form of energy storage because it provides the most energy per unit mass: 1.00 grams of fat provides about 9.40 (food) Calories, compared to 4.20 (food) Calories per 1.00 grams of carbohydrate. Remember that Calories associated with food, which are always capitalized, are not exactly the same as calories used in physics or chemistry, even though they have the same name. More specifically, one food Calorie is equal to 1000 calories of mechanical work or 4184 joules. Therefore, in this problem use the conversion factor 1 Cal 4184 J. Figure 1 of 1 ▸ View Available Hint(s) db = 455 km Submit Previous Answers ▾ Part B ▶ How many grams of carbohydrate mcarbwould the bird have to consume to travel the same distance db? Express your answer in grams View Available Hint(s) Correct mcarb 8.95 g Submit Part C Previous Answers Correct This is more…arrow_forward
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