Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 1, Problem 4TYK
Could both the food competition hypothesis and the sexual competition hypothesis explain why giraffes have long necks? Why or why not?
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Chapter 1 Solutions
Biological Science (7th Edition)
Ch. 1 - Anton van Leeuwenhoek made an important...Ch. 1 - What does it mean to say that a characteristic is...Ch. 1 - 4. Could both the food competition hypothesis and...Ch. 1 - Prob. 5TYUCh. 1 - What did Linnaeus' system of naming organisms...Ch. 1 - 7. What is “selected” during natural selection?...Ch. 1 - 8. PROCESS OF SCIENCE Explain why researchers...Ch. 1 - Prob. 10TYPSSCh. 1 - Prob. 11PIATCh. 1 - Prob. 12PIAT
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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
- In social insects, colonies often consist of a queen and workers. The workers are typicallydaughters of the queen. The queen is the only reproductive individual—the workers aresterile. a) According to Hamiton’s rule, what is the maximum ratio of cost to benefit (C/B) for theworkers in order for this system to evolve?b) Some colonies of ants have multiple queens, which can be related to different degrees.Imagine that two sisters start a colony, so that they are the mother or aunt to allworkers. What is the maximum ratio of cost to benefit (C/B) for the workers to sacrificefor their aunts?arrow_forwardIn the context of the evolutionary relationship among ants, wasps, and bees, how come that these insects have shared common characteristics?arrow_forwardWhat is the cost of sexual reproduction for males of Teleogryllus oceanicus on Kauai island?arrow_forward
- How does competition influence natural selection? Is the presence of competitors a selective force?arrow_forwardWhen great tits were experimentally reared in blue tit (Cyanistes caeruleus) nests, they survived quite well but failed to mate with their own species. The reproductive success of these individuals was consequently low (Slagsvold and Hansen 2001). Discuss both the negative and positive effects that imprinting of this sort could have had on the evolution of interspecific brood parasitism (when one species lays its eggs in the nest of another species) (Don't use any online source)arrow_forwardIn a study in which men and women were asked to sit at a computer and navigate through a virtual maze, the men were able to complete the task more quickly and with fewer errors over five trials than the women (Moffat et al. 1998). What possible proximate developmental mechanisms might be responsible for this sex difference in navigational ability? Use the evolutionary explanation for sex differences in spatial learning ability by voles to make a prediction about the nature of human mating systems over evolutionary time.arrow_forward
- We often observe the evolutionary loss of “useless” organs, such as the eyes in many cave-dwelling animals. a) Provide two different hypotheses to explain this loss: an adaptive and a nonadaptive hypothesis. b) How might these hypotheses be tested? Describe what type of data you would need to collect, or potential experiments.arrow_forwardWhich question below directly corresponds to whether Lamarck or Darwin are correct about their theories of the mechanisms of evolution? A.) Why don’t the shorter neck giraffes feed on grasses and lower vegetation? B.) How would the shorter necked giraffes in Lamarck’s theory survive to reproduce and pass on the “need” for longer necks if they were unable to reach food? C.) Why won’t the taller necked giraffes in Darwin’s theory provide assistance to the shorter giraffes since they are the same species? D.) Will the smaller giraffes be more adapted to hide from predators since they wouldn’t be visible from greater distances?arrow_forwardHow would you apply this in a Lamarckian explanation? Tiger Moths (Bertholdia trigona) produce high pitched ultrasonic clicking (at a rate of 4500 clicks/sec) when they hear the echolocation calls of bats (bats eat moths). As a result, the bat's sonar is jammed and the Tiger Moth escapes without being caught, killed, and eaten. Please use your knowledge of Evolution by Natural Selection to explain the process by which this remarkable anti-predator defense evolved in Tiger Moths. Please use your Knowledge of Evolution by Natural Selection to explain the process by which this remarkable anti-predator defense evolved in Tiger Moths.arrow_forward
- How does the geographic distribution of quagga mussels differ from that of zebra mussels? Describe these spatial patterns shown by the map’s data, and then suggest two different hypotheses for why this difference between species may exist.arrow_forwardOne of Darwin’s finches, the medium ground finch (Geospiza fortis), is found on the small island of Daphne Major. These finches are seedeating birds. A major drought occurred on the island in 1977. Following the drought, the average beak size of medium ground finches had increased about 3%–4%. Why might a drought lead to an evolutionary change in beak size? Propose a hypothesis and explain how you could go about testing it.arrow_forwardWhat can you infer about bats compared to other mammals? What do you conclude about the effect of hibernation on survival? What do you conclude about the effect of body mass on survival?arrow_forward
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