Friday

December 19, 2014

December 19, 2014

Number of results: 33,143

**Enviormental Science ( Human Population)**

I need to find the missing word. An icrease in population could result from increased birth rate, increased __________, or immigration. Increased birthrates and immigration account for an increase in population. Decreased death rates also account for an increase in population...
*March 15, 2007 by Mack*

**enviormental science**

in two or three well-developed paragraphs, summarize how the reproductive behavior of individuals can affect the growth rate of their population
*December 5, 2011 by nesha*

**science help**

1.how do fossil fuels contribute to air pollution ? a) by releasing carbon dioxide into the air b) by recycling oxygen c) by reversing the greenhouse effect d) by releasing nitrogen into the air 2. How can human population growth affect ecosystems like rain forests a) human ...
*May 19, 2014 by kelsey *

**Science :)**

1. Forests and fisheries are examples of abiotic factors. energy factors. renewable resources. nonrenewable resources. 2. How has the human population changed during the last 50 years? The human population has increased exponentially. The human population has decreased ...
*December 18, 2013 by Princess Anna*

**Science**

What are some examples of enviormental factors that may affect how tall a person grows to be?
*January 10, 2008 by Paige*

**human life**

The human population of the world is over 6 billion. The increase of the human population P (in billions) can be approximated using the following formula: P = 0.073t + 6.08, where t is the number of years after the year 2000. Use the formula to predict how many years it will ...
*March 14, 2013 by Anonymous*

**Science (Human Population Growth)**

How have advances in medicine and technology affected population growth?
*May 9, 2014 by Becky *

**sciece**

compare and contrast deer population growth to human population growth in terms of a. predation and competition and b. speed of population response. I don't understand predation in terms of human population growth (can someone explain please)? I do not understand speed of ...
*September 9, 2009 by cara*

**Science**

I'm doing a project on human population growth and the ecosystems. Does anyone know of any good websites that explain how china is affecting its ecosystems and why is chinas population growing so fast (technologically)?
*September 16, 2007 by Dani*

**Science**

A newspaper story on AIDS reports that an allele (R) confers complete resistance to HIV when homozygous and that 1% of the human population is resistant (RR). The story also states that 20% of the population carries one copy of the resistance allele (i.e., is heterozygous). Is...
*April 7, 2013 by MT*

**science**

With the growing human population, many researchers argue that nuclear energy may be the only available option as to fuel the needs of out rapidly expanding population. How would you address this caveat to coal and other non-renewable resources?
*January 12, 2008 by Anonymous*

**Global science**

A population histogram that looks like a triangle ____. It also means A)the population is rapidly expanding. b) the population is stabilizing.C)a clumped population.d)The population is declining.
*November 1, 2010 by Anonymous*

**math**

UGH! The human population of the world is over 6 billion. The increase of the human population P (in billions) can be approximated using the following formula: P = 0.073t + 6.08, where t is the number of years after the year 2000. Use the formula to predict how many years it ...
*March 11, 2013 by Linda*

**science**

About __________% of the world's human population lives in the developing countries. a. 20 b. 40 c. 60 d. 80 e. 90
*September 3, 2013 by Esa*

**Life science/ Biology**

Describe how the human population growth issue has and will impact the ecosystem.
*August 8, 2008 by Laura*

**Science**

1. How does a nuclear power plant produce energy? A. Through solar panels B. Through nuclear fission reactions C. Through geothermal heat D. Through nuclear meltdown reactions<------------ 2. How can human population growth affect ecosystems like rain forests? A. Human ...
*May 29, 2014 by Anonymous*

**environmental science**

Explain the main point concerning exponential growth and whether it is good or bad. Compare exponential growth to a logistic growth curve and explain how these might apply to human population growth. What promotes exponential growth? What constrains population growth?
*November 2, 2011 by len*

**science**

What changes in diet would allow a growing human population to be supported without any further increase in farmland? Explain your answer. help me please :(
*September 23, 2009 by ali*

**BIO 100**

Write a 200-300 word response addressing the following points: What is the current estimate of the worldwide human population at this moment? Describe how this number is changing moment-to-moment, day-to-day, and from one year to the next. Describe how the human population ...
*December 22, 2009 by Rayna *

**population,poverty and human development(hiv/aids **

"the larger a population,the higher the levels of poverty'.Do you agree with statement?justify your response.25marks
*April 28, 2013 by kelly t*

**human services agency**

What is the population of hospice patients that human services attend
*May 27, 2010 by marie hunt*

**Science**

Why is the human population of the Earth still growing rapidly even though birth rates have begun to fall slightly? Due to better health and medical advancements, people are living longer.
*March 18, 2007 by Mack*

**Science**

This graph shows the changes in two populations of herbivores in a grassy field. In the y axis it says number of organisms in the x- axis it says Time In the graph A is decreasing , B is increasing, At first they were steady then slightly A decreased and B increased . A ...
*January 3, 2012 by MAcy*

**Science**

Could you help me formulate a hypothesis that explains the changes in population of the yellow-headed blacbird. Factors that influence this change are; -Air and Water Quality -Climate Change -Human Activities But what could be the hypothesis. Thank you in Advance
*February 25, 2008 by Lauren*

**science**

Linear growth a. is characterized by a rapidly growing population. b. is demonstrated by the sequence 12, 13, 14, 15, 16. c. is illustrated by the numbers 2, 4, 8, 16, 32. d. is characterized by resource use and consumption. e. is characterized by a slowly decreasing ...
*September 3, 2013 by Mohammad*

**Global science**

The ajor reason for the dfamatic increase in human population during the last 100 years is ? a)increasing birthrates,B)decreasing birth rates,c)improved daycare for children,d) decreasing death rates
*November 1, 2010 by Anonymous*

**Environmental science**

I know how environmental science branches off to various sciences- how does astronomy (to be specific, the discovery that Pluto's not a planet anymore) relates to environmental science? Thank you! Reclassifying Pluto as "not a planet" is NOT a discovery. It was an arbitrary ...
*September 6, 2006 by Jin*

**Science**

Explain the four factors that produce changes in population size. Which factors are affecting the population size? What do you predict will happen to the nutria population after all the land is depleted of the nutrias’ food resource?
*December 21, 2007 by Danny*

**Environmental Science**

Explain the four factors that produce changes in population size. Which factors are affecting the population size? What do you predict will happen to the nutria population after all the land is depleted of the nutrias’ food resource?
*November 29, 2008 by coreen*

**science: check my answers please**

h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its carry capacity at about what size? a. 0 b. 500 c. 1000 d. 1500 e. 2000 Is it 1500? 3. The plateau of population B is ...
*August 30, 2009 by maggie*

**science (please check my answers)**

h t t p: //tinypic . co m/r/309lnac/3 1. The population growth exhibited by population A to the right is what? Is is exponential? 2. Population B reaches its carry capacity at about what size? a. 0 b. 500 c. 1000 d. 1500 e. 2000 Is it 1500? 3. The plateau of population B is ...
*August 30, 2009 by maggie*

**Enviro Science**

4. Which of the following is NOT a threat that impacts biodiversity? a. use of land for agriculture and housing b. dam construction c. overuse of water d. helping endangered species D 10. If exponential growth occurs in the population of a species of predator, the population ...
*April 21, 2012 by mysterychicken*

**Science**

The study of human population patterns is called _________________. Thank you for using the Jiskha Homework Help Forum. Here is what the Online Dictionary says: Main Entry: de·mog·ra·phy Pronunciation: di-'mä-gr&-fE Function: noun Etymology: French dé...
*March 18, 2007 by Mack*

**science**

What are the four factors that produce changes in population because of Nutria's? Which factors affect population size? What is the prediction of what will happen to the Nutria population after the land is depleted of the nutria;s food resource? PLEASE HELP.
*December 13, 2009 by Lori*

**Science**

Can you please tell me the effects of human activities on ecosystems. Example Human Activity and Consequences....
*February 14, 2013 by Sarah*

**science**

the carrying capacity for a population is estimated at 500. the population size is currently 400 and r max is 0.01. what is dN/df?
*October 27, 2010 by lisa*

**Science**

If the adverage weight of a human body is 75kg and given the mass of the earth is 5976 x 10^21kg, how many people will it take to exceed the weight of the earth? At the present growth of 1.14%, when will the present population of 6.8 x 10^9 grow to that number?
*February 6, 2013 by Jason *

**science**

If a population is not in genetic equilibrium, what must be occurring in the population
*April 10, 2013 by Lisa*

**math**

Suppose that the population of a town is described by P=0.16t^2=7.2t=100, where P is the population in thousands and t is the time in years, ( with t=o representing the year 2000). A. what will the population be in 2010? B. what was the population in 1995? C. when will the ...
*November 24, 2010 by ted*

**human service**

identify three barriers to services, planning, funding, or empowerment in a selected aspect of human services. How does community development help address these barriers? I am attempting to do this paper on empowerment within the homeless population. I am stuck on finding ...
*November 21, 2011 by Patiance*

**Calculus**

The population in certain country is growing at the rate of 7 % a year . If the population in the year 1995 was 190 million, (a)determine an exponential expression representing the population as a function of the year. (b) What will the population be in 2005 ? (c) What was the...
*October 23, 2013 by Migena*

**environmental science**

1. Checkpoint: Population Size • View the Ch. 7 Alien Invasion VLR located under the Week Four Materials section of your student Web page. • Post a 200- to 300-word response to the following: o Explain the four factors that produce changes in population size. o Which factors ...
*October 24, 2009 by m*

**Geography**

How do landforms and climate affect the distribution of population? My answer: Landforms and climate affect this due to some lands being unsuitable for human habitation, which influences where people live, resulting in population distribution.
*September 5, 2013 by Anonymous*

**math**

the population of a town is declining at a rate of 4.1% per year. the current population is 25000. 1)what will the population be in 7 years. 2) how long will it take the population to reach 15000?
*December 12, 2013 by Riana*

**World history; Check:P**

Human Origins Essay Write a opinion paper on the most significant consequences of the Agricultural Revolution. One of the greatest consequence was that the population increased. The increase of population lead to the need of more clothing. People who were farmers moved to ...
*February 15, 2013 by Unknown*

**Science 7R - The Human Body Prep Test**

I have a test tommrrow on the The Human Body and I asked my science teacher if she can post a castle learning assignment about the Human Body (the day before the test she always post a caslte learning assignment for us to study and do well on the test the next day) and then ...
*April 2, 2012 by Laruen *

**Science**

Overpopulating rabbits in Australia were finally controlled by a disease spread trough the population. A higher death rate was recorded in regions with large population than small population. The disease can be considered.... A. A density-dependent factor. B. A density-...
*December 5, 2009 by Kaled*

**Math**

The population of a southern city follows the exponential law. If the population doubled in size over 13 months and the current population is 30,000 what will the population be in 5 years from now?
*November 23, 2012 by lily*

**Science**

Discuss the importance ofeach step in the scientific method: why do you think scienctists utilize this type of experimentation? the only thing I could come up with was finding ways to keeps us alive, how fast the human population is growing and the economic growth and ...
*September 3, 2007 by tracey*

**Pleaaaaaase help with differential graph question**

Suppose further that the population’s rate of change is governed by the differential equation dP/dt = f(P) where f (P) is the function graphed. For which values of the population P does the population increase? (b) For which values of the population P does the population ...
*December 1, 2014 by Dana*

**5th Grade math**

Working Backwards: In the 1980's the Northen White Rhinoceros population decreased by 485 from what it was in the 1970s. By the 1990s the population increased 2 more than twice the population in the 1970s By the 2000s the population dropped 25 rhinoceroes to about 7 today what...
*September 9, 2008 by Lucy*

**7th grade science**

what are two ways a population may decrease in number? Explain the difference between direct and indirect observation in regard to determining population size. Please help!!! Thank you!!
*November 7, 2011 by saranghae12*

**calculus**

The population of a certain community is increasing at a rate directly proportional to the population at any time t. In the last yr, the population has doubled. How long will it take for the population to triple? Round the answer to the nearest hundredth, if necessary.
*April 21, 2012 by help please. *

**math**

Suppose that the population of a town is described by P=0.16t^2+7.2t+100, where P is the population in thousands and t is the time in years, ( with t=o representing the year 2000). A. what will the population be in 2010? B. what was the population in 1995? C. when will the ...
*November 24, 2010 by ted*

**human resources**

Is the US better able to compete globally because of its diverse population
*October 14, 2008 by China*

**Biology**

How does the human population growth issue have and will impact the ecosystem?
*May 15, 2009 by B.B.*

**check geo**

the european union requires its members to : A)limit and clean up enviornmental pollution B)pay high tariffs C)cease industrial production D)limit enviormental pollution my choice is d
*August 30, 2009 by henry*

**World Geography**

1.Which of the following demographic characteristics distinguishes Europe's population from that of Asia? A.) More Europeans inhabit rural areas. B.) The European population is much younger. C.) Europeans are more concentration in urban areas. D.) Europe has a larger ...
*May 10, 2013 by Kaitlyn*

**Statistics (39)**

Suppose a random sample of size 40 is selected from a population with = 9. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate). a. The population size is infinite (to 2 decimals). b. The ...
*May 6, 2014 by Mia*

**Economics (39)**

Suppose a random sample of size 40 is selected from a population with = 9. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate). a. The population size is infinite (to 2 decimals). b. The ...
*May 9, 2014 by Mia*

**Calculus**

The CIA published data about foreign countries on its web page. In particular they show total population as well as population growth. If a student is looking at Russia, they will see that the total population of Russia is declining. When they look at the table that shows ...
*June 17, 2014 by Jamie*

**statistics**

Suppose a random sample of size 50 is selected from a population with σ = 10. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate). a. The population size is infinite (to 2 decimals). ...
*April 14, 2014 by Vanessa*

**statistics**

Suppose a random sample of size 50 is selected from a population with σ = 10. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate). a. The population size is infinite (to 2 decimals). ...
*April 15, 2014 by Vanessa*

**Algebra**

At 8Am population of bacteria is 100,at 10Am population of bacteria is 200,At 12PM population of bacteria is 400,At 2PM population of bacteria is 800.If the pattern continues what will the bacteria population be at 6.00 pm
*August 7, 2014 by Firdous *

**Science**

If India had a population of 1.05 billion in 2002 with a steady growth rate of .9%, when would its population reach 4.2 billion?
*December 5, 2010 by Anne*

**Environmental Science**

India’s prime minister puts you in charge of that nation’s population policy. India has a population growth rate of 1.6% per year, a TFR of 2.7, a 49% rate of contraceptive use, and a population that is 71% rural. What policy steps would you recommend, and why? What do they ...
*September 28, 2014 by Aly*

**Algebra**

On Jan 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of population growth. Its population increases 7% each year. On the same day, Checkersville has a population of 70,000 people. Checkersville starts to experience a population decline...
*February 5, 2014 by Anonymous*

**Algebra**

On Jan 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of population growth. Its population increases 7% each year. On the same day, Checkersville has a population of 70,000 people. Checkersville starts to experience a population decline...
*February 5, 2014 by Anonymous*

**science**

suppose that a population of skunks lives on an isolated island is 500 skunks are present today and the birth rate is 65 per week and the death is 47 per week how many skunks to you predict will be on the island 105 days from now and what would a graph population versus time ...
*November 18, 2013 by Anonymous*

**Science**

suppose that a population of skunks lives on an isolated island is 500 skunks are present today and the birth rate is 65 per week and the death is 47 per week how many skunks to you predict will be on the island 105 days from now and what would a graph population versus time ...
*December 22, 2013 by K*

**Criminal law**

1. _________ refer to the notion that basic guarantees exist and that all people possess them simply by virtue of being human. Natural rights Hypothetical imperatives Moral duties is it A 2. Much of the reasoning in the social sciences is __________, which involves making ...
*March 28, 2014 by Amy*

**science**

. In which regions of the world will most population growth occur during the twenty-first century? What conditions contribute to rapid population growth in these locations?
*June 25, 2010 by Tony*

**biology**

how is emigration and immigration not important factors when studying global human population growth?
*May 25, 2010 by kc*

**Science**

Have to answer these in a reflection. Help? How has science evolved over time? How is human ingenuity portrayed in sciences? In what ways have humans shaped science? In what ways has science shaped our lives? What would the world be like without science? In what way has ...
*January 14, 2014 by Rag*

**Alegebra I**

I need help please!!! On January 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of population growth. Its population increases 7% each year. On the same day, Checkersville had a population of 70,000 people. Checkersville starts to ...
*February 3, 2013 by Amber*

**math**

the population of a southern city follows the exponential law. If the population doubled in size over an 18 month period and the current population in 10000, what will be the population 2 years from now? the equation for the exponential equation is: A=ao e ^ -kt ao is the ...
*November 21, 2008 by kayla*

**science help**

If water temperature changes in favor of greater oxygen levels how do the population of the fish and wading bird population change in response to the new oxygen over time? I would think the fish population would increase and so would the birds (because the fish increase) but I...
*March 18, 2014 by SDog*

**math**

In 1980, the population of a certain country was about 161 000. since then the population has decreased about 1% per year. a. find an equation to model the population since 1980 b. estimate the population in 1990 c. suppose the current trend continues. predict the population ...
*November 16, 2011 by jefferson*

**MATH**

4. The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer. b) The town will need...
*July 6, 2013 by FUNCTIONS*

**MATH**

4. The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer. b) The town will need...
*July 8, 2013 by FUNCTIONS*

**math**

The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer. b) The town will need ...
*July 8, 2013 by FUNCTIONS*

**aadvanced functions HELP!**

the population of a town is decreasing at a rate of 1.8% per year. The current population of the own in 12000. a)write and equation that models the population of the town b)how long will it take for the population to decline to one quarter of its current population? c)...
*December 10, 2008 by james*

**science**

The population of Singapore is 4987600 people. The territory of Singapore is 710.2 km^s. The population of Namibia is 2171000 people, while its territory is 824292 km^2. Estimate the population densities of Singapore and Namibia.
*March 24, 2010 by jamie*

**Calculs I**

A bacterial population grows at a rate proportional to the population size at time t. Let y(t) be the population size at time t. By experiment it is determined that the population at t=15 min is 16000 and at t=45 min it is 22000. (a) What was the initial population? (b)What ...
*November 2, 2014 by Lyca*

**science**

Why is it important to preserve biodiversity? A. Preservation of biodiversity prevents extinction of species, b. Preservation of biodiversity prevents the human population from increasing exponentially, c. Preservation of biodiversity disturbs the balance of ecosystems, d. ...
*January 20, 2014 by Anonymous*

**SCIENCE HELP !!**

Suppose humans significantly increased their harvest of catfish, causing a decline in the catfish population. Predict what effect this would most likely have on the population of muskrats. Explain your reasoning.
*May 22, 2014 by kelsey *

**Human and social biology **

where a disease is always present, why are preventitive measures better for the whole population than treatment?
*September 29, 2014 by Malini *

**Algebra**

On Jan 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of population growth. Its population increases 7% each year. On the same day, Checkersville has a population of 70,000 people. Checkersville starts to experience a population decline...
*February 2, 2014 by Anonymous*

**Algebra**

On Jan 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of population growth. Its population increases 7% each year. On the same day, Checkersville has a population of 70,000 people. Checkersville starts to experience a population decline...
*February 3, 2014 by Anonymous*

**Science**

1> Family spending in Newton Housing 44% food 21% transportation 14% clothing 6% medical 5% ther 10% So what amount is nearly half of all spending? 2> In which year was the world population 2 billion? 3> What is the population accepted to be in 2012?
*September 15, 2008 by ALisha*

**Sociology**

If Andrea's parents have her take violin lessons, take a foreign language and attend science camp in hopes of her developing skills so she can get into a competitive college, is that an example of human capital or cultural capital? I was leaning towards human capital but human...
*April 12, 2014 by Jared*

**RE**

How will humans evolve? What will happen to the natural world-and how will humans respond? What will happen to the global population? Will inequalities be solved or strengthened? What will be the advances in medical science? No more disease? More powerful viruses? Where will ...
*March 3, 2009 by Nabiha*

**calculus**

Bacterial Population: A bacterial colony is estimated to have a population of P(t)=(24t+10)/(t^2+1) Million t hours after the introduction or a toxin. At what rate is the population changing in 1 hour after the toxin is introduced (t=1)? Is the population increasing or ...
*August 4, 2009 by ariana`*

**Human Geography-Help!**

Where is the largest concentration of people? East Asia If the physiological density is higher than the arithmetic density what can you infer? There's too many people for resources. What stage of the demographic transition has a rapidly delcining crude death rate? stage 2 ...
*September 30, 2010 by Kylie*

**Ecology**

What are the types of population density measure and how each may be determined? Airkon Population density is a measurement of the number of people in an area. It is an average number. Population density is calculated by dividing the number of people by area. Population ...
*October 8, 2006 by airkon*

**science**

What are psychoanalytical models? How have these models been used to explain human behavior? Which model do you feel is the most effective in explaining human behavior? Why?
*April 17, 2014 by tania*

**psychology **

Ethical standards in human research allow researchers to balance interests in acquiring new information with concern about: a. public approval b. Dignity and human welfare c. Making money from experiments d. Applied science e. Getting academic recognition
*June 25, 2013 by Taylor B *

**Environmental Science**

Explain the four factors that produce changes in population size. Which factors are affecting the population size in the video?
*September 26, 2008 by Anonymous*

**math**

the population of Concord in 1980 was 400 greater than half the population Euclid. The sum of the two populations was 29,600 less than twice the population of Euclid. What was the population of each city in 1980?
*September 7, 2010 by Mike*

**9th grade Algebra**

the population of Concord in 1980 was 400 greater than half the population Euclid. The sum of the two populations was 29,600 less than twice the population of Euclid. What was the population of each city in 1980?
*September 7, 2010 by Mike*

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