Thursday
October 2, 2014

Search: Ecosystems

Number of results: 120

Science-check my answers plz
Which of the following explains why sunlight is important to aquatic ecosystems? Sunlight provides a source of heat energy to increase water temperatures. Sunlight keeps harmful bacteria from taking over aquatic ecosystems. Sunlight makes it possible for aquatic predators to ...
January 30, 2014 by Princess Anna

science
true or false: ecosystems with a lot of water support fewer organisms than ecosystems with little water?
February 28, 2009 by Bibi 17

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
Why are rain forests the most diverse ecosystems? a- the are near bodies of water b- they have favorable climates c- they are surrounded by mountains d- they have more pollutants then other ecosystems my answer is B
February 8, 2014 by Steve

ecosystems
How are the flow of matter and the flow of energy through ecosystems different?
September 10, 2008 by bex

Eng
I have to do an assignment on Ecosystems perspective and social work. I'm asked to write how they would apply the in ecosystems working with a community issue. How should I start my essay? I need ideas and issues to write and what exactly is ecosystem perspectives? Thank you!
January 22, 2014 by Jessica

Science
[I choose b.] Where are some of the unique ecosystems of the U.S? a.in Pacific Northwest and California b.in the Flordia Everglades and Hawaii c.both (a) and (b) d.none of the above The U.S. has many unique ecosystems. Please think through the question again and post a ...
March 18, 2007 by Mack

Ecosystems
what r 2 major ways in which nitrogen is fixed in ecosystems? i dont get what they mean by "major" ways? also wikipedia uses difficult wordings i dont understand.
July 5, 2010 by Sherrie

Science
Which of the following sets of words can be used to describe the outputs of photosynthesis? water, glucose, light energy carbon dioxide, glucose, chemical energy oxygen, glucose, chemical energy glucose, oxygen, light energy Which of the following is true about producers? They...
February 6, 2014 by Anonymous

science
what differences produce a variety of ecosystems?
April 25, 2010 by gerard

Ecosystems
do detrivores return eneregy to an ecosystem?
July 5, 2010 by Sherrie

Science
Why are ecosystems important to the survival of humans?
March 28, 2011 by Anonymous

sci
why are aquatic ecosystems important to humans?
January 17, 2013 by Anonymous

ecosystems
All nonliving things in an area are called what?
September 11, 2008 by Anonymous

Science
How can community growth affect local ecosystems?
October 13, 2012 by Jen

science
where do we encounter concepts of aquatic ecosystems everyday?
January 17, 2013 by Anonymous

4th grade
______ differences produce a variety of ecosystems
October 23, 2008 by Taylor

Science
what does it mean that nitrogen is a limiting nutrient in many marine ecosystems?
April 27, 2012 by Brianna

science
what is an ecosystem? compare and give examples of open and closed ecosystems
January 10, 2011 by Anonymous

Ecology
How does the skin and life cycle of a frog help indicate the health of local ecosystems?
February 13, 2010 by Emily

enviro science
what are the benefits and the negatives of dams and resevoirs? how do they affect ecosystems if at all?
March 14, 2011 by kylie

Ecosystems
how much energy is lost 4rm producers to secondary consumers? I think between 80 and 90 percent.
July 5, 2010 by Sherrie

Biology: Ecosystems
What are three groups of organisms that are photosynthetic autotrophs? What are the primary producers of the deep-sea vents?
August 25, 2011 by Sal

science
which abiotic factor separates marine ecosystems from river ecosystem? A)sunlight B)salt C)sand D)algae
October 26, 2011 by miki

biology
The removal of which of the following would have the biggest impact on marine ecosystems? a. fishes b. whales c. shrimp D. plankton
October 2, 2007 by Kayla

Science
We are stumped trying to create a concept map with community, population, ecosystems, organs, tissues, cells, nucleus, golgi complex, etc. Can you help?
November 20, 2008 by Tony

Environmental Science
Use your knowledge of energy flow wiyhin ecosystems to offer a simple explanation for the following statement: "All flesh is grass."
December 22, 2006 by Qiayamah

Ecosystems
any ideas on how i can make a food chain in a pond ecosystem. i guess i can include fish, sharks, polar bear and stuff, but can you assist me please.
July 5, 2010 by Sherrie

SCI 275
To function, ecosystems require an input of energy. Where does this energy come from?
November 14, 2007 by dawn

SCI 275
To function, ecosystems require an input of energy. Where does this energy come from?
November 15, 2007 by dawn

Ecosystems the pond chain
ms. sue i have another question for the food chain and i posted it on that post.
July 5, 2010 by Sherrie

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

Biology
Hi, I am studying energy movements in ecosystems. Could you help me with this question: What type of food would be consumed by a secondaryconsumer in the third trophic level of a food chain.
February 5, 2008 by Faye

Science
Explain why the life cycle and skin of the frog make it a good indicator animal if you want to determine the health of local ecosystems. Please please help. Thanks so much.
September 9, 2007 by mary

Science ecosystems
Paper Glass Aluminum Wooden ruler Sand Steak Pork chops Salad Bread Hair Cotton fabric Wool Cheddar cheese Can you tell why ? It is urgent !
June 4, 2014 by Sally

ecosystems
Hi, can someone help me? What land biome has the lowest humidity? I guess Tundra. A tundra if I'm not mistaken. There were 4 answers: tundra temperate forest grassland rainforest
January 30, 2014 by Hi

Ecosystems
how weathering releases phospahte from rock? i really don't know, any sites i could go on to to get the answer? no wikipedia, or hard ones. english aint my language so hard words i wont be able to understand.
July 5, 2010 by Sherrie

science
Before beginning any land development project, people should carry out a(n) ___________________ analysis to consider all of the potential impacts of the project on the local ecosystems
December 16, 2013 by Kobe

science
before beginning any land development project, people should carry out a _________ analysis to consider all of the potential impacts of the project on the local ecosystems.
May 7, 2014 by susanne

Science
Why are rain forests the most diverse ecosystem? a. They are near bodies of water b. They have a favorable climate c. They are surrounded by mountains d. they have more pollutants that other ecosystems
May 22, 2014 by Calvin

Science ecosystems
Paper Glass Aluminum Wooden ruler Sand Steak Pork chops Salad Bread Hair Cotton fabric Wool Cheddar cheese Can you tell why ? It is urgent ! Are they. Biotic or abiotic
June 4, 2014 by Sally

Ecosystems
my first question still requires assistance, i need help with the first question i posted onto here. i will be grateful of your assitance.
July 5, 2010 by Sherrie

Environmental Science
18. Which of the following is NOT an effect of acid precipitation? a. loss of animal and plant populations and aquatic ecosystems b. acidiciation of soil c. health problems and poisoning of the human body d. increased occurrences of storms, rain, hurricanes, natural disasters ...
January 21, 2010 by y912f

science
Low water flows are a common problem for ecosystems in semi-urban streams. Should the suggestion of using domestic drinking water supplies to increase water flows in the streams be adopted?
July 24, 2012 by Anonymous

Science
Can someone please help me with these questions below thank you. 1. What do you think the impact of the earth's climate will be like if everyone enjoyed the same lifestyle? 2. What will it be like for The health of ecosystems and biodiversity? 3. What will the impact be like ...
September 10, 2011 by John

Biology-Ecology
Multiple choice What is the ultimate source of energy for most ecosystems, and in what form does the energy leave the ecosystem? 1. plants; animals 2. light; heat 3. plants; heat 4. producers; consumers 5. heat; light
March 16, 2013 by Amy

science (help)
18.Fertilizers and pesticides applied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland. This is an example of _________________ pollution. 19.Before beginning any land development project, people should carry out a(n) ...
May 26, 2014 by luna

Biology 9
I need a topic for with this criteria.. Asses the impact of a factor related to human activity that threatens the sustainability of a terrestrial or aquatic ecosystem OR Evaluate the effectiveness of government initiatives in canada and or the efforts of societal groups (...
October 16, 2010 by lll

Science
What's the vocabulary word for the Definition (variety of habitats and communities within ecosystems)? http://en.wikipedia.org/wiki/Ecological_niche
March 18, 2007 by Mack

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
Develop three guidelines based on the four scientific principles of sustainability for our use of genetic engineering and synthetic biology to modify species and ecosystems. I know the four scientific principles are: 1) Reliance on solar energy 2) Biodiversity 3) Nutrient ...
December 9, 2007 by STUDENT - IMPORTANT!

science help plzzz
Multiple Choice 1. Which of the following images shows a living organism interacting with a biotic factor in its environment? (1 point) bird drinking water koala eating leaves plant in the Earth whale in the ocean 2. Which of the following shows the correct order from smallest...
November 7, 2013 by josh

Environmental Science
Develop three guidelines based on the four scientific principles of sustainability for our use of genetic engineering and synthetic biology to modify species and ecosystems. I know the four scientific principles are: 1) Reliance on solar energy 2) Biodiversity 3) Nutrient ...
December 9, 2007 by STUDENT

Biology
I don't know any info an the first semester and midterms are tomorrow please help ( Populations, Communities, and Ecosystems Chemistry of Living Things History of Life on Earth: The First Simple Cells History of Life on Earth: Complex Cells Cells and Their Environment Energy ...
January 19, 2011 by Noemie

bio check my answer plz???
Ideally, sustainable development should ___________. A)put the protection of the environment ahead of human needs B)provide for human needs at the expense of the environment C)use more natural resources to make goods to meet human needs D)preserve ecosystems while providing ...
December 26, 2012 by Bre

science
what are the answers to the ecosystems packet for 7th grade in science? I need the answers asap because i need to finish getting all of the answers to the packet so i can study it tonight because i need to make up the test to that packet and it is because the day my teacher ...
April 4, 2013 by lola

biome
How has agriculture Alberta’s grassland biome 1) The grass is shorter from the cows eating it. 2) There are piles of cow poo in the grass so watch your step. Don't know much specifically about Canada's grasslands, but if you lose too much of that grass you run the risk of a ...
August 12, 2006 by argiculture

Science help
Im trying to finish my study guide so i can study this weekend but i have more problems like this and i dont have a clue of what they mean Fertilizers and perticides applied to farm fields in pennsylvania have made their way down into the chesapeake bay in maryland.this is an ...
January 10, 2014 by Matt

Science
[I choose a.] Preserving entire ecosystems rather than individual species is a good conservation strategy because a.only endangered species will be saved b.developers will have greater access to land c.more than one species can be saved d.it will not be necessary for ...
March 18, 2007 by Mack

Ecosystems
put following terms in order from smallest to largest biome biosphere community ecosystem single species population order 1 single species 2 community 3 population 4 ecosystem 5 biosphere 6 biome
July 5, 2010 by Sherrie

science
Which of the following best supports the idea that the melting of glaciers in Antarctica is a global environmental threat? A. The melting of glaciers can cause sea levels on Earth to fall. B. The melting of glaciers can change ecosystems in Antarctica. C. The melting of ...
December 13, 2013 by Anonymous

sociology
From a functionalist perspective, how has human behavior and our way of life contributed to environmental problems? So far I have the premise that functionalist examine the entire system itself. Human activities have become a dominant influence on the earth's climate and ...
December 1, 2011 by nameless

sociology
From a functionalist perspective, how has human behavior and our way of life contributed to environmental problems? So far I have the premise that functionalist examine the entire system itself. Human activities have become a dominant influence on the earth's climate and ...
December 2, 2011 by nameless

Environmental Science
#54. In two or three well-developed paragraphs, define and list two characteristics of each of the following: coastal wetlands, coral reefs, and oceans. I'm not sure what it means by defining and listing two characteristics. here's my answer: Coastal wetlands are coastal land ...
February 24, 2010 by y912f

sci/275
Review Ch. 5, The Flow of Energy Through Ecosystems. Then, complete Appendix C. · Post your response to the following: Identify the fruit or vegetable you selected and relate the second law of thermodynamics to the changes in energy observed in Appendix C. How did the amount ...
December 9, 2008 by Shawn

Science
Cave ecosystems are characterized by extremely low light levels. What role does photosynthesis play in a cave ecosystem? 1: Photosynthesis is essential because it provides the original energy source for all food chains in this ecosystem. 2: photosynthesis is essential only for...
March 15, 2014 by Anonymous

Science
In the western U.S., ranchers aggressively killed wolves because they posed a threat to their cattle. As the wolf population declined, the deer population began increasing. As a result, the surrounding forest ecosystems experienced increasing damage. The large number of deer ...
December 27, 2013 by Steve

AP environmental Science
Can someone please explain what this means to me in english? i've read it a million times and i have no idea what it means. Thanks for any help!!! "Scientific evidence shows a direct relationship between sea level and the global mean atomospheric temperature during the past ...
October 23, 2011 by Renee

scienc
Resources: Ch. 5 of Visualizing Environmental Science and Appendix C „h Due Date: Day 2 [Main forum] „h Review Ch. 5, The Flow of Energy Through Ecosystems. Then, complete Appendix C. „h Post your response to the following: Identify the fruit or vegetable you selected and ...
March 14, 2010 by Anonymous

Environmental Science
7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism? a. trophic level b. food web c. energy pyramid d. food chain D 10. Which of the following is an example of...
April 15, 2012 by mysterychicken

Environmental Science
7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism? a. trophic level b. food web c. energy pyramid d. food chain D 10. Which of the following is an example of...
April 15, 2012 by mysterychicken

scice help!?!?!?!
can someone please help me with these 2 questions because im losing my mind! which of the following is an example of a cylic behavior that is seasonal? A.running from predators B.searching for water C.hunting at night D.migrating for warmth 12.in the western U.S.,ranchers ...
January 10, 2014 by Matt

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

Environmental Science
Research Paper I need to write a research paper on coral reefs. i need to compose a research paper that deals with coral reefs and addresses enough of the questions below in order to meet the minimum page requirements for the paper (3-4 double spaced pages) Explain what a ...
March 15, 2010 by y912f

English
Thank you very much. Here is the second part. Some data are unclear. I hope you can help me. 1) “Focus group” led by the school principal made up of the participating students (or the students involved in the project), the contact person (also: reporting person) , the ...
February 4, 2012 by Henry2

Science.
Which abiotic factor is essential to all aquatic ecosystems except ocean hydrothermal vents, and why? Phytoplankton, because it provides a source of food salt, because it provides a source of minerals deep water, because it provides the necessary environment for organisms to ...
February 4, 2014 by Anonymous

social studies(updated answers)
1.B 2.C 3.B 4.D 5.A 1. which geographic features lies east of the andes moutains? A. saltwater grasses B. active volcanoes C. llanos grasslands D. mangrove swamps 2. Which landform can be found in the andes mountains? A. savannas B. cordilleras C. deserts D. plains 3. which ...
March 13, 2014 by matt

Science help
14. The energy role of the first organism in a food chain is always a(n) ___________. (1 point) 15. Water is a(n) __________ factor in all ecosystems that all living things require. (1 point) 16. ___________bacteria carry out the conversion of gaseous nitrogen to a ...
April 27, 2014 by Anoymous

please check(Social studies)
please check my answers thanks 1. A 2. D 3. B 4. B 5. A 1. which geographic features lies east of the andes moutains? A. saltwater grasses B. active volcanoes C. llanos grasslands D. mangrove swamps 2. Which landform can be found in the andes mountains? A. savannas B. ...
March 13, 2014 by matt

Enviro Science
2. The water resources of Earth are located in a. salt water found in the ocean b. freshwater found in icecaps and glaciers c. fresh water found in rivers, lakes, and streams d. all of the above C 4. Weather is the state of the atmosphere at a moment in time and at any ...
April 29, 2012 by mysterychicken

English
Thank you very, very much indeed! Here is the second part, concerning the scientific and linguistic objectives. The question is: " What are the concrete objectives of the partnership"? 1)Scientific objectives - describing the biodiversity, the presence of macroinvertebrates as...
February 8, 2012 by Henry2

Asap science check my answer plz?!
Fill in the Blank: 14. The energy role of the first organism in a food chain is always a(n) ___________. A: Producer 15. Water is a(n) __________ factor in all ecosystems that all living things require. A: Abiotic 16. ___________bacteria carry out the conversion of gaseous ...
May 1, 2014 by Anoymous

Environmental Science
How does lichens contribute to primary succession? BSCI 124 Lecture Notes Undergraduate Program in Plant Biology, University of Maryland LECTURE 34 - PLANT SUCCESSION I. Plant succession - a series of predictable changes over time in the kinds of plants growing in an area * A...
December 22, 2006 by Qiayamah

Enviro Science
28. Good experiments have 2 key characteristics; they are a. an experimental group and a confirmed hypothesis b. analysis of the control group and an accurate prediction of the outcome c. conducting the actual experiment and reporting the results d. testing a single variable ...
April 25, 2012 by mysterychicken

Environmental Science
Research Paper I need to write a research paper on coral reefs. i need to compose a research paper that deals with coral reefs and addresses enough of the questions below in order to meet the minimum page requirements for the paper (3-4 double spaced pages) Explain what a ...
March 15, 2010 by y912f

Science
2. According to the continental drift theory, which of the following land regions should show the greatest similarities in fossil types? (1 point) A) east coast of South America and west coast of Africa B) east coast of South and west coast of South America C) northern coast ...
February 4, 2014 by Nicole M

science urgent please i really need your help
Which of the following is an example of recycling? a. collecting and remelting aluminum beer cans b. cleaning and refilling soft-drink bottles c. selling used clothing at a garage sale d. saving leftovers in a peanut butter jar e. using household water to water a garden Point...
September 3, 2013 by Mohammad

sci-please revise
The Flow of Energy Through Ecosystems. Then, complete Appendix C and respond to the following: Identify the fruit or vegetable you selected and relate the second law of thermodynamics to the changes in energy observed in Appendix C. How did the amount of energy gained compare ...
June 24, 2008 by rose-

english 12
what is the thesis suppose to do analysis of this essay to show its cause effect. How do i start it ? June 15, 2001 - More than 13,000 years ago when humans first set foot in the Americas, there were no roads crisscrossing the landscape, no sprawling cities, no vast fields of ...
October 21, 2008 by ben

Science
14.If a forest ecosystem is removed through clear-cutting, many species of organisms that lived in that ecosystem disappear. Their loss is due to ________________________. 15.When fossil fuels are burned, they produce ________________, the main greenhouse gas responsible for ...
January 5, 2014 by Peter

Enviro Science
23. Which of the following does NOT describe an effect of the Industrial Revolution? a. Fossil fuels became more important energy sources b. The amount of land and labor needed to produce food increased c. Artificial substances replaced some animal and plant products d. ...
April 24, 2012 by mysterychicken

social studies check answers
1.D 2.A 4.C 1.“Along the southern coast of Brazil the central plateau descends in high, steep escarpments. It towers over the waves and moves back in ridges, leveling off from the peaks of the coastal ranges … As it continues along to the northern regions, however, it ...
April 5, 2014 by matt

social studies(updated answers)--
1.D 2.A 4.C 1.“Along the southern coast of Brazil the central plateau descends in high, steep escarpments. It towers over the waves and moves back in ridges, leveling off from the peaks of the coastal ranges … As it continues along to the northern regions, however, it ...
April 5, 2014 by matt

social studies check answers
1.D 2.A 4.C 1.“Along the southern coast of Brazil the central plateau descends in high, steep escarpments. It towers over the waves and moves back in ridges, leveling off from the peaks of the coastal ranges … As it continues along to the northern regions, however, it ...
April 5, 2014 by matt

College Biology
1. WHat kind of vegetation (or biome) would be found on the western slope of mountains at 6,000 feet? Explain. 2. How are the general characteristics of plants (for example, morphology influenced by climate?) In other words, explain what effects climate has on the types of ...
June 18, 2007 by Summer

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

biology
Would you like to help me answers some of my questions in Biology? 1/ Darwin concluded that the most well adapted individuals in a population will leave the most offspring for future generations. This can be considered a measure of an individual's.. a/ phylogeny b/ family tree...
May 8, 2011 by jenni

environ. probl-please revise
Discuss an environmental problem that you feel is significant in your town or city. What are some causes? Are any of these causes related to human values and environmental ethics? Explain. Environmental problem faces a variety of issues around the world not to mention the city...
June 13, 2008 by rose -Ms. Sue

social studies(updated answers)
1.B 2.C 3.A 4.B 5.D 1.“Along the southern coast of Brazil the central plateau descends in high, steep escarpments. It towers over the waves and moves back in ridges, leveling off from the peaks of the coastal ranges … As it continues along to the northern regions, however, it ...
April 3, 2014 by matt

social studies check answers
Im not sure these are right.I Tryed my best :D. 1.A 2.B 3.C 4.A or B 5.B 1.“Along the southern coast of Brazil the central plateau descends in high, steep escarpments. It towers over the waves and moves back in ridges, leveling off from the peaks of the coastal ranges … As it ...
April 3, 2014 by matt

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