slands are well known for having many endemic (unique) species. What is a likely explanation for this pattern? A. Humans bring partly or fully domesticated species with them when they arrive on islands. B. Colonizers encounter fewer competitors on an island, so they can diversify. C. Islands are more complex habitats than continents are, so they have more niches for specializations. D. Colonizers are likely to have more diversity than local populations and thus outcompete them. E. The type of organism that is a good colonizer has more than the average amount of genetic variability, so it's more likely to speciate.

slands are well known for having many endemic (unique) species. What is a likely explanation for this pattern? A. Humans bring partly or fully domesticated species with them when they arrive on islands. B. Colonizers encounter fewer competitors on an island, so they can diversify. C. Islands are more complex habitats than continents are, so they have more niches for specializations. D. Colonizers are likely to have more diversity than local populations and thus outcompete them. E. The type of organism that is a good colonizer has more than the average amount of genetic variability, so it's more likely to speciate.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter21: Conservation And Biodiversity

Section: Chapter Questions

Problem 6RQ: Which two extinction risks may be a direct result of the pet trade? a. climate change and exotic...

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If populations of white rhinoceros (Ceratotherium simum) continue to decline, one approach to prevent extinction would be captive breeding. How does this process work? a. The remaining animals are moved into captivity to try to increase the population, after which they are reintroduced into the wild. b. The remaining animals are moved to a national park. c. The remaining animals are taken to the largest zoos so more people can see theam. d. A few individuals are moved to an outdoor enclosure to ensure that mates are available.
If populations of white rhinoceros (Ceratotherium simum) continue to decline, one approach to prevent extinction would be captive breeding. How does this process work? a. The remaining animals are moved into captivity to try to increase the population, after which they are reintroduced into the wild. b. The remaining animals are moved to a national park. c. The remaining animals are taken to the largest zoos so more people can see them. d. A few individuals are moved to an outdoor enclosure to ensure that mates are available.
Islands are well known for having many endemic (unique) species. What is a likely explanation for this pattern? O A. The type of organism that is a good colonizer has more than the average amount of genetic variability, so it's more likely to speciate. O B. Colonizers encounter fewer competitors on an island, so they can diversify. O C. Islands are more complex habitats than continents are, so they have more niches for specializations. O D. Humans bring partly or fully domesticated species with them when they arrive on islands. O E. Colonizers are likely to have more diversity than local populations and thus outcompete them. «< Question A Moving to another question will save this response. PrtScn F8 Home F9 End F10 PgUp PgDn F12 F11 DII F5 F6 F7 F3 F4 & %23 $ 7 8 9. 4
Why are species that live at the tops of mountains at increased risk of extinction due to climate change? a. The colder temperatures at the tops of mountains gradually increase, and the species at the tops of the mountains are displaced by species at lower elevations moving up. b. The species at the tops of the mountains are adapted to moving up and down the mountains and species at lower elevations are displacing them as they move down the mountains. c. The species at the tops of the mountains are adapted to lower oxygen and climate change increases oxygen content in the air. d. Species at the tops of mountains do not have the genetic diversity for adaptation that lower-elevational species do. Therefore species at the tops of the mountains are more likely to go extinct.
Which statement comparing island biogeography to mainland biogeography is true? A. The slope of species richness to area should be steeper for mainland species than for island species. B. Mainland sites should experience higher rates of immigration than island sites. Mainland sites should experience higher rates of extinction than island sites. C. D. On the mainland, extinction rate increases with area faster than immigration rate does, whereas the opposite is true for islands. E. Extinction rates would be the same for mainland and island sites.
Which statement about zero population growth isoclines of two competing species is true? A. Species coexistence requires that the two isoclines cross. B. The crossing of the two isoclines is a sufficient condition for species coexistence. C. If the species coexist, they will each do so at a higher density than either would if placed alone. D. Strongly competing species can only coexist if the two species have very different carrying capacities. E. Coexistence will occur if the two isoclines are parallel.
According to "The Complex Evolution of Homo sapiens", what happened to large animals in the areas where our species migrated? A.Nothing happened to large animals when we migrated into their territories B.They increased in number soon after we migrated into their area C.They died out soon after we migrated into their area D.We domesticated them soon after we migrated into their area
According to "The Complex Evolution of Homo sapiens", what happened to large animals in the areas where our species migrated? A.They died out soon after we migrated into their area B.We domesticated them soon after we migrated into their area C.Nothing happened to large animals when we migrated into their territories D.They increased in number soon after we migrated into their area
A recent United Nations analysis report gathered data on declines in biodiversity across the world. Using the graphs provided, which statement shows an area of concern and is an alternative to the general hypothesis "Humans are responsible for a significant increase in the extinction rate among species in the world today as a result of damage caused to the environment"? A. Fertilizer use in developing countries should be encouraged to decrease the extinction rate B. Decreasing air pollution in the least developed countries would decrease species survival rate C. Protection of key biodiversity areas should be a priority for developed countries to lower the extinction rate D. Assisting developing countries with more sustainable methods of extraction of living biomass would increase species survival rates
This map shows the spread of the red fire ant after its introduction into the United States in Mobile, Alabama, in the 1930s: Which statement best explains the importance of interspecific relationships in the success of this invasive species?a. Ecosystems with more resources will support the red ant over the native ant b. Invaded communities with higher species richness will allow the red ant to thrive c. Communities with fewer feeding relationships are less resilient to change. d. Native ants have a higher relative abundance compared to the invasive red ant.
Which hypothesis is plausible for the extinction of the dodo bird? Select all answers that apply. A. The food and other resources they required became scarce due to climate change. B. An asteroid crashed into the region where the birds lived and only affected their survival and not the other animals that lived there. C. Cannibalism within the species caused the population to decline. D. Each bird dove into the water even though it could not swim, which led to mass drownings. U E. Predators, including humans, hunted and killed the population to a point that it could not recover. red MacBook Air 80 F3 F1 DO0 F4 F2 F5 F7 % & %24 23
Give typing answer with explanation and conclusion A conservationist wants to enhance survival of individual Daphnia populations in the metapopulation along the Scandinavian coast. To be successful, which action would this conservationist most likely carry out in these freshwater rock pools? a. Connecting vulnerable pools by making dispersal corridors to the ocean b.Separating the smallest pools from the largest to prevent immigration c.Removing the shortest-lived Daphnia species from all pools d.Separating pools so the Daphnia cannot mix with one another e.Connecting vulnerable pools by making dispersal corridors between them

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	A.	Humans bring partly or fully domesticated species with them when they arrive on islands.
	B.	Colonizers encounter fewer competitors on an island, so they can diversify.
	C.	Islands are more complex habitats than continents are, so they have more niches for specializations.
	D.	Colonizers are likely to have more diversity than local populations and thus outcompete them.
	E.	The type of organism that is a good colonizer has more than the average amount of genetic variability, so it's more likely to speciate.