Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 43, Problem 3CT
European cuckoos and North American brown-headed cowbirds are not dose relatives, but both lay their eggs in the nest o other birds. Both also have an unusually simple song. Why is having a simple species-specific song an advantage for such birds?
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Chapter 43 Solutions
Biology: The Unity and Diversity of Life
Ch. 43 - Prob. 1DAACh. 43 - Prob. 2DAACh. 43 - Prob. 3DAACh. 43 - Whether a fruit fly is a sitter or a rover depends...Ch. 43 - Prob. 2SQCh. 43 - An animal that navigates by the stars needs...Ch. 43 - The honeybee dance language transmits information...Ch. 43 - A _______ is a chemical that conveys information...Ch. 43 - Prob. 6SQCh. 43 - Generally, living in a social group cost the...
Ch. 43 - Prob. 8SQCh. 43 - Prob. 9SQCh. 43 - Prob. 10SQCh. 43 - A honeybee worker is a ________. a. fertile female...Ch. 43 - Prob. 12SQCh. 43 - Prob. 13SQCh. 43 - Prob. 14SQCh. 43 - Prob. 15SQCh. 43 - Prob. 1CTCh. 43 - Prob. 2CTCh. 43 - European cuckoos and North American brown-headed...Ch. 43 - When researchers gave pair-bonded voles...
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- If an altered structure, such as the long neck of the giraffe, is advantageous, why don’t all species have that structure?arrow_forwardYou are a researcher studying birds in an Indonesian rainforest. You have just discovered two new species whose beaks are markedly different, which you have named Laetiphonia orthorhynchus and Laetiphonia rhamphis. In particular, the beaks of L. orthorhynchus are very long, straight and pointed, whereas L. rhamphis have beaks that are quite short, wide and curved downwards. In further studies, you find that the same gene codes for beak shape in both species. In your own words, explain at least two ways that changes in gene expression could result in the differences you observe between these two species. Make sure to be specific in how your explanation applies to the bird species in this example.arrow_forwardWhat advantages does seasonal migration provide for birds?arrow_forward
- A researcher discovered a species of moth that lays its eggs on oak trees. Eggs are laid at two distinct times of the year: early in spring when the oak trees are flowering and in midsummer when flowering is past. Caterpillars from eggs that hatch in spring feed on oak flowers and look like oak flowers. But caterpillars that hatch in summer feed on oak leaves and look like oak twigs. How does the same population of moths produce such different-looking caterpillars on the same trees? To answer this question, the biologist caught many female moths from the same population and collected their eggs. He put at least one egg from each female into eight identical cups. The eggs hatched, and at least two larvae from each female were maintained in one of the four temperature and light Temperature Day Length Springlike Springlike conditions listed below. Springlike Summerlike Summerlike Springlike Summerlike Summerlike In each of the four environments, one of the caterpillars was fed oak…arrow_forwardMore than 90% of all bird species are monogamous. Explain why monogamy is much more common among birds than among mammals.arrow_forwardFlightless birds on island often have relative on the mainland that can fly. The island species presumably evolved from fliers that, in the absences of predators, lost their ability to fly. Many island population of flightless birds are in decline because rats have been introduced to their previously isolated island habits. Despite current selection pressure in favor of flight, no flightless island bird species has regained the ability to fly. Why is this unlikely to happen?arrow_forward
- Mimicry of yellowjacket wasps by clearwing moths is an example of a harmless species resembling a dangerous one. What is the ad-vantage to the moth of this form of mimicry? What is the advan-tage to a dangerous species of mimicking another dangerous species?arrow_forwardRemote islands that are far from any mainland are home to many species that have evolved distinctive adaptations to live in the unique island conditions. (e) Some birds evolve adaptations that include losing the ability to fly. Explain how a species of bird on a remote island could lose the ability to fly over time.arrow_forwardWhat did Darwin observe regarding finches on different islands in the Galapagos? Different beak sizes led to birds singing different songs, which he found led to assortative mating. Different beak sizes and shapes were adapted to fit well with the available food. O Darwin observed that offspring of finches had similar sized beaks as their parents. O Finches could easily hop over to different islands and would quickly find new niches. 20 988 114 4 Indoor Playground with Wheelsarrow_forward
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