Number of Birds 50 30- 20- 10. 0 7.3 7.8 8.3 9.3 9.8 A Beak Depth (mm) 8.8 A Caption: Distribution of beak depths of medium ground finches (Geospiza fortis) on the island of Daphne Major in 1976 (white bars) and of the survivors of the 1977 drought (black bars). The means of the two populations are indicated by the carets. Not all species have the same size beak 1976 Parents Which of the following is NOT a conclusion you can make from the figure above. Think back to the beak of the finch video. More finches are born than can survive 10.3 10.8 11.3 O Birds with some larger beaks survive at higher rates The number of finches always remains the same

Number of Birds 50 30- 20- 10. 0 7.3 7.8 8.3 9.3 9.8 A Beak Depth (mm) 8.8 A Caption: Distribution of beak depths of medium ground finches (Geospiza fortis) on the island of Daphne Major in 1976 (white bars) and of the survivors of the 1977 drought (black bars). The means of the two populations are indicated by the carets. Not all species have the same size beak 1976 Parents Which of the following is NOT a conclusion you can make from the figure above. Think back to the beak of the finch video. More finches are born than can survive 10.3 10.8 11.3 O Birds with some larger beaks survive at higher rates The number of finches always remains the same

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter45: Population And Community Ecology

Section: Chapter Questions

Problem 17RQ: Which of the following statements does not support the conclusion that giraffes are k-selected...

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11.0 G. fortis 10.0- 1978 1976 9.0F 8.0 8.0 9.0 10.0 11.0 Midparent bill depth (mm) Geospiza is a genus of finches that inhabit the Galapagos Islands. In 1976, finches were grouped together based on the average depth of their bills. The data from the first generation of grouped finches are plotted on the X-axis. The bill depths of the offspring from each group are plotted on the Y-axis. In 1978, the experiment was repeated after a drought on the Galapagos Islands. The red line represents the data from 1976 and the blue line represents the data from 1978. The slope of both the red line is 0.90 and the slope of the blue line is 0.90. Was there any change in the heritability of the bill depth trait after the drought? Explain your reasoning. Offspring bill depth (mm)
ul TEW ? 8:24 PM © 1 0 15% 0 6 of 15 The Galapagos Islands are a chain of islands west of South America. The islands are home to thirteen closely-related species of finches. Four of the finch species are shown below. Note that each type of finch has a different beak shape. Warbler Small Tree Medium Ground Large Ground Finch Finch Finch Finch Which explanation most likely accounts for the differences seen in the beak shape of the finches? The finches each had a different ancestor. Finches with larger beaks had richer diets than those with smaller beaks. The finches were selectively bred for their individual beak shapes. Differences in the diet of each species of finch led to adaptation of their beak shapes. Next >
Activity 13.3: Complete the table. Directions: Explain and give example for each type of reproductive isolating mechanisms. Pre-zygotic Reproductive Isolating Mechanisms Explanation Еxample Habitat Isolation Behavioral Isolation Post-zygotic Reproductive Isolating Mechanisms Explanation Еxample Hybrid inviability Hybrid breakdown JNGSO
會事 3 of 6 Base your answers to questlons 14- 16 on the Information below and on your knowledge of blology. Unless actions are taken to slow the decline of domesticated honeybees and augment [increase] their populations with wild bees, many fruits and vegetables may disappear from the food supply, said Claire Kremen, a conservation biologist at Princeton University in New Jersey.. The honeybee decline, which is affecting domesticated and wild bee populations around the world, is mostly the result of diseases spread as a result of mites and other parasites as well as the spraying of crops with pesticides, scientists say. Source: "Bee Declines May Spell End of Some Fruits, Vegetables," National Geographic News, October 5, 2005 14. The decrease in the honeybee population is partly due to A. the use of pesticides B. the use of fertilizers C. a decrease in prey D. a decrease in fruits and vegetables 15. "Diseases spread as a result of mites" would be considered a factor. A. density…
Moose and Winter Ticks Significant mortality of moose (Alces alces) occurred throughout broad regions of northern and western Alberta in early 1999. Occurrences* involving moose were recorded at local Alberta Natural Resources Service (NRS) district offices. A total of 1130 occurrence reports involving moose throughout Alberta between January 1 and April 30, 1999 were submitted to the author for review. Although there was considerable inherent bias in the sample, some general patterns emerged. Most moose (92 percent) had evidence of hairloss and 28 percent of them were dead. In the overall sample, 35 percent were calves; however in the subsample of dead moose with hairloss, 43 percent were calves. It is assumed that the hairloss was a result of infestation with winter tick, Dermacentor albipictus. Most occurrences (96 percent) were within the boreal habitats of northern and western Alberta and half of them were recorded in March (50 percent). It is apparent that excessive mortality of…
Direction: Analyze the situation and tell what limiting factor is being described. Choose in the box below the type of limiting factors. Mortality Natality Emigration Immigration Situation Limiting Factor 1. Every year, there's an increase in the population of migratory birds in Candava. Pampanga. 2. The increase of the population of frogs during rainy days. 3. Russian population decline due to Covid-19 effect. 4. Decrease in the population of birds when they move to another place due to unfavorable weather conditions. 5. The population in the Philippines increases due to teenage pregnancy.
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3806/variants/596276/take/13/ Tp The very long beak of a hummingbird has evolved along with the tubular flower that it pollinates. Which of the following processes explains how these 2 separate populations can change together? All Changes Saved s Answered 56°F Mostly cloudy
patch colonization rate (c) of 1.3 patch extinction rate (e) of 0.9 what is P at equilibrium?
b) Figure 7 shows population growth of Proboscis monkeys over time. 2.0E carrying capacity V 1.5- Monkey populations 1.아- 0.5- Time Figure 7 i) State the type of population growth. ii) Proboscis monkeys nomally live in groups in their natural habitat. What is the dispersion pattern for this monkey population? iii) Describe what happens to Proboscis monkey population at V. 12 iv) Give one (1) possible example of density-dependent factor that affects the Proboscis monkey population.
Number of individuals 10 8 6 4 64 2 0 6 On balloon vine fruits Beak- Museum-specimen average On introduced species 8 10 11 Beak length (mm) Soapberry bugs use needlelike "beaks" to feed on seeds within the fruits of various plants. Bugs feed most successfully when their beak length matches the size of the fruit on which they are feeding. For 25 years, populations of soapberry bugs in central Florida have been feeding on small goldenrain tree fruits that were introduced to the area rather than on the larger native balloon vine fruits that serve as food for other soapberry bug populations. Beak lengths of soapberry bugs are variable but the average beak length is shorter in soapberry bug populations that feed on goldenrain tree fruits than in populations that feed on balloon vine fruits, as shown in the graph. How does natural selection act on beak length in soapberry bug populations? Natural selection decreases beak length in soapberry bug populations. Natural selection increases beak…
#3 3 Q What happened to the angry clipbird population in the East over the three seasons? Explain why you think this happened. East Clipland -1st Season 2nd Season 3rd Season 2nd Season # of birds $ 4 1st Season JUN EFFE % 5 1 < C 6 3rd Season MacBook Pro & 7 tv * 8 (+)- ( 9