Explain why genetic drift may be important when captive populations of animals or plants are started with just?
Q. Explain why genetic drift may be important when captive populations of animals or plants are started with just a few individuals.
Asked by Brian - Thu Oct 29 09:56:24 2009 - - 1 Answers - 0 Comments

A. A trait which was rare in the general population may be commonplace if one or more of the individuals in the subpopulation has it. This is "founder effect". One of the classics is fishing villages along Lake Maricaibo where Huntington's chorea is highly prevalent.
Answered by novangelis - Thu Oct 29 10:12:36 2009

Regarding some animal populations declining, what can we do to lessen the effects of global warming?
Q. This is just something I would like to know. We are all affected by decreasing animal populations, what can we do to help?
Asked by Blu_Berii - Thu Apr 29 23:05:49 2010 - - 2 Answers - 0 Comments

A. Well the debate over global warming is not over. Their has been climate change taking place all throughout time. What's causing the decline of wildlife is spreading development, uncontrolled use of herbicides and mutating viruses (frogs mostly) which there is basically nothing you can do about. What you can do to help now is grow organic, demand organic, don't build any further out in the country side and donate to medical research for a cure.
Answered by chris w - Thu Apr 29 23:14:48 2010

Restoration of salmon populations to the columbia river basin?
Q. I have to write a paper on how best to restore salmon populations to the columbia river basin. It has to have 2 bits of researched data, 2 interest groups that agree with me, human impacts on the issue, something about native american treaties and interests, the money involved, and how it does and doesn't affect larger environmental issues. I can't find anything on the internet that seems to be related to all of this. Does anyone know about any sites that has this info?
Asked by Hanyuu - Mon Sep 21 22:18:28 2009 - - 1 Answers - 0 Comments

A. Hey cool! You're around my area (or at least my state... region of the US). hope that helps you out man! Also, refer to the Google search below for more results :)
Answered by Jonathan - Tue Sep 22 21:25:56 2009

How did governments address the issue of fading enthusiasm for the war within their populations?
Q. How did governments address the issue of fading enthusiasm for the war within their populations? A: They allowed soldiers more time to visit their families. B: They promised there would be no more wars. C: They used newsreels and posters to stir up emotions. D: They provided extra food and supplies to the civilian population.
Asked by shawty_lexie06 - Thu Nov 1 14:27:21 2007 - - 3 Answers - 0 Comments

A. Hmm, well George Bush seems to just ignore opinion!
Answered by Subic - Thu Nov 1 14:35:05 2007

Why did the populations of cities decline in Europe during the Dark Ages?
Q. Why did the populations of cities decline in Europe during the Dark Ages?
Asked by ct2345 - Fri Feb 8 11:36:59 2008 - - 6 Answers - 0 Comments

A. Louise has it right. With the fall of the Roman Empire and the invasions coming in unending waves, cities collapsed. It takes a stable civilization for big cities to survive as they require a lot of effort to work properly. Food has to be carted from outside and sometimes from quite far, water systems be kept running smoothly, some way to cart away waste, and enough monetary reason to stay there. When you have howling barbarians running around the peasants would rather stay at home and defend their land or have a strong lord to do it for them than risk their life bringing cabbages to the cities and people have less reasons to settle in a city. So the city populations declined until the right balance was reached, enough people to defend… [cont.]
Answered by Cabal - Fri Feb 8 13:16:05 2008

What do you think the future holds for these indigenous populations?
Q. The life of some Native Americans in the Amazon Rainforest has been almost unchanged since the arrival of Europeans in the early 1500s. What do you think the future holds for these indigenous populations? -Im writing a paper and am only 3/4 done i need more ideas. please help.
Asked by Becca - Mon Jan 11 07:37:59 2010 - - 5 Answers - 0 Comments

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Answered by Death Always Has the Last Word - Mon Jan 11 07:56:19 2010

What if the populations of Japan and Nigeria switch countries?
Q. They have about the same size populations, but Nigeria has far greater natural resources and a safer and warmer climate, yet Japan is a very rich 1st World country and in Nigeria wealth goes to the people in power. What would the situation be in 20 years after a population switch?
Asked by Big Willy - Sat Mar 28 23:36:12 2009 - - 5 Answers - 4 Comments

A. Japan would be an overflowing river of pure disgust(like nigeria now)The infested general public would mostly be dieing from aids or other veneral complications along with a certainty that some where some government would come and help.(see welfare) Nigeria on the other hand would soon be a well sought after place to live.Useing the naturel resources the Japanese would finaly have enough room to create a nirvana.And oh yeah,NO BLACKS. Can`t wait. see you there
Answered by guitar guy - Sun Mar 29 00:21:24 2009

What is the debate over population numbers and what is it the native populations are thought to have acompli..?
Q. Native Americans were in the New World for 16,000 years. What is the debate over population numbers and what is it the native populations are thought to have accomplished?
Asked by pakmaan244 - Sat Nov 8 18:08:33 2008 - - 1 Answers - 0 Comments

A. cindy
Answered by FreedomFighter - Sun Nov 9 13:18:51 2008

What are the populations (of Russia) west and east of the Ural Mountains?
Q. I need to know the most recent populations.
Asked by duncachinno - Thu Feb 14 15:06:22 2008 - - 2 Answers - 1 Comments

A. I live there (if it helps) but yeah, I dont really understand the question.
Answered by sweetchildomine - Sun Feb 17 14:32:17 2008

Why is the concept of carrying capacity hard to apply to modern human populations? Did it apply to primitive h?
Q. Why is the concept of carrying capacity hard to apply to modern human populations? Did it apply to primitive humans? Why or why not? Please List reference sources.
Asked by TC315 - Sun Sep 21 02:24:04 2008 - - 1 Answers - 0 Comments

A. You can find your own references. lol but think of it this way, we aren't limited by resources because we can simply improve farming technology to increase the amount of food we grow. Earth can most likely support many more people than live here now if the whole world suddenly became as adept at farming as the united states and other western countries. With the industrial pest control and etc yeah it did, because theres only so many nuts and berries per square mile for primitives to eat, so they can't live in a place long, so there can't be as many of them per square mile, etc.
Answered by Nateface - Sun Sep 21 02:28:19 2008

Why is the concept of carrying capacity difficult to apply to human populations?
Q. Why is the concept of carrying capacity difficult to apply to human populations? In reference to human population, should the concept be modified to include quality of life?
Asked by nena - Tue Dec 11 05:52:32 2007 - - 2 Answers - 0 Comments

A. Because carrying capacity really only applies to other organisms that can't change their environment. For example, some are limited by their food resources. However this is not the case with humans - think about transports from other countries and the use of fertilisers to increase crop yield. Think about what happens when an organisms in the wild reaches their carrying cap: they drop back down slightly (ie. no more space, no more resources, higher chance of disease transmission, etc.) but for humans, there will never be "no more space" (Think about apartments or something) and disease transmission doesn't seem to be a problem at all due to health care, increased sanitations, etc.
Answered by haine - Tue Dec 11 10:20:41 2007

What is the purpose of tracking wildlife populations?
Q. WHat are the benefits of tracking these populations?
Asked by John - Sun May 30 12:25:41 2010 - - 3 Answers - 0 Comments

A. When you track wildlife populations you can tell if the population is getting too high thus there could be sick and starving animals, they could be killing off another population that they prey on or they could begin to move into human neighborhoods. IF they are a dangerous animal this is vital information. It also tells you if you need to have an added hunting season (like for white tailed deer) to prevent animals starving and more deer/car accidents. If the population is too small then you can get an early warning that the species may be becoming endangered and need to be protected or start an in captivity breeding program in order to repopulate. Some animals (like frogs) can tell us about our environment. They are the first to suffer… [cont.]
Answered by mamaof3 - Sun May 30 12:31:36 2010

What is the effect of wolf populations on natural ecosystems?
Q. Does anybody know any good sites that talk about the effect of wolf populations on the natural ecosystems?
Asked by animeschoolgirl05 - Thu Oct 18 01:31:50 2007 - - 4 Answers - 0 Comments

A. i also wonder
Answered by Akuma - Thu Oct 18 01:34:00 2007

What is a 'cyclic' pattern that balances the animals populations?
Q. Eventually the hare and wolf populations will balance in a 'cyclic' pattern. Explain how this can happen. I don't know what the cyclic pattern is, someone help me explain what it is. 10 POINTS!
Asked by Princessx51. - Thu Feb 4 21:14:32 2010 - - 2 Answers - 1 Comments

A. Let's say you have a bunch of rabbits in an area with lush vegetation but no predators. The bunnies breed like, well rabbits and the population explodes. As long as there is enough food available, the population continues to increase. There comes a point where the rabbits eat more than the land can produce and now rabbits are starving. Some starve and die, others get sick and die and predators also find out about the abundance of rabbits in that particular area. Being weak, they are very easy to catch and all those things combined reduces the population. With fewer rabbits to eat, some of the predators move on to other areas in search of food. With fewer rabbits eating vegetation, the land recovers, produces more vegetation and the… [cont.]
Answered by bikinkawboy - Thu Feb 4 21:26:23 2010

Statistics: test of hypothesis for the difference between the means of two populations?
Q. Hi, I have a little problem and a missing formula: I have two populations and I want to demonstrate that between them there is a significant difference. However, I'm not working with two samples of my two populations, but directly with the two entire populations, so I'm not sure that the tests for the difference of means between two populations (independent samples) will apply. But I need anyway to demonstrate that the difference between the means is significant, that is greater than the normal standard deviations of the two populations. What formula should I use?
Asked by Snowslide - Sun May 24 06:45:24 2009 - - 2 Answers - 0 Comments

A. Interesting question! Since you have the entire population of both types, the question to ask is what does "significant difference" actually mean. In the case of sampling, the term significant difference is used to indicate the differences in the samples is greater than could be expected by sampling alone. (If you draw two samples from a single population, the samples are not likely to have exactly the same mean--the statistical tests tell you if that difference is bigger than could be expected by chance.) So if you really have the complete population of both groups, any difference between the means is "significant" since there is no variability due to sampling. That said, you want to be sure that you REALLY have both populations. … [cont.]
Answered by Hans - Tue May 26 00:39:06 2009

As populations live longer due to medical technologies, the need for managing chronic diseases, associated dis?
Q. As populations live longer due to medical technologies, the need for managing chronic diseases, associated disabilities, and mental health issues will increase. Long-term care services can meet those needs in a variety of settings. What are some of the long-term facilities in your community or state? Are there any essential services missing? If yes, what are they? If no, what services could be improved upon? What other health care services are offered in your community or state that are not long-term care services?
Asked by chizben - Sun Sep 21 07:49:55 2008 - - 2 Answers - 0 Comments

A. They are aiming at people preventing chronic illnesses. Those who are in the population of chronic diseases and disabilities are certainly struggling financially and emotionally. I believe that it's a national problem in the U.S. as services provided cost more, insurance companies pay less, and patients must pay more money. It is a vicious cycle. Especially when more and more people avoid necessary physical care, causing complications in their health, because they simply cannot afford it. There are various national organizations that work towards helping patients get the care the need and deserve, but it's far from perfect, and they'll be the first to tell you that. Just a sad fact of life nowadays. Once you get into the system, things… [cont.]
Answered by curlyQ - Sun Sep 21 13:48:39 2008

Which of the following is most likely to result in large rapid genetic divergence of two populations?
Q. a. when two large populations become isolate from each other, but occupy the same type of habitat b. when two large populations become isolated but continue to exhange migrants. c. when a few individuals act as founders of a new population isolated from the orginal population d. when many moderate sized populations are formed which all exchange migrants. please explain your answer, thank you!
Asked by R C - Wed Jun 11 21:32:25 2008 - - 1 Answers - 0 Comments

A. c...think of the finches
Answered by lod43 - Wed Jun 11 21:47:14 2008

If a population becomes isolated from other populations of the same species and then genetic divergence?
Q. occurs that prevents them from breeding with other populations, what has happened? a. mechanical incompatibility b. speciation c. extinction d. formation of genetic drifts e. directional selection
Asked by Secret Wish - Sat Nov 8 09:15:13 2008 - - 1 Answers - 0 Comments

A. d. formation of genetic drift. genetic drift: Variation in the genetic makeup of a species over time, often resulting from environmental change or isolation.
Answered by ssRNA - Sat Nov 8 09:29:44 2008

How can carnivores control the size of plant populations?
Q. Well i am stuck on my assignment and i have one question : Describe, using specific examples, how carnivores can control the size of plant populations. Well do the carnivores control the plant population by eating the herbivores? What would be a good example of that? Thanks
Asked by Logic - Thu Oct 23 23:55:34 2008 - - 3 Answers - 0 Comments

A. suppose there are a large number of herbivores say deer in a forest..now if the lion does not kill enough of them they will increase in number ..as a result their food requirement will increase..since they depend only on plants to fulfill their food requirements they eat more plants and the number of plants in the forest keeps on decreasing until the lion eats some of them and decreases their number..when their number decreases so will their food requirement and the number of plants in the area remains under control and is saved from reducing drastically
Answered by deeksha thakur - Fri Oct 24 01:26:00 2008

POpulations?
Q. I need to know the populations of the following places in all of the years shown below the places. Thanks. World- 1807- 1832- 1857- 1882- 1907- 1932- 1957- 1982- 2007- South Carolina- 1957- 1962- 1967- 1972- 1977- 1982- 1987- 1992- 1997- 2002- 2007- California- 1957- 1962- 1967- 1972- 1977- 1982- 1987- 1992- 1997- 2002- 2007-
Asked by n2u820 - Thu Mar 13 08:06:22 2008 - - 1 Answers - 0 Comments

A. You had better google that mess yourself!
Answered by Hottest Gamer! - Thu Mar 13 08:15:31 2008