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Mark for review (Will be highlighted on the review page) 20. Which of the following examples of an ecological study involves the ecosystem level of organization? A. The effects of human activities on biogeochemical cycling B. The effects of an invasive plant species on bird nesting sites C. The effects of a disease on population size D. The effects of competition on survival
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Asked 3/19/2015 12:21:56 PM
Updated 10/15/2017 12:56:01 PM
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[object Object]User: Mark for review (Will be highlighted on the review page) 19. A complex of interconnected food chains in an ecosystem is called a/an A. ecological pyramid. B. trophic stack. C. food web. D. ecosystem.

User: Mark for review (Will be highlighted on the review page) 20. Which of the following examples of an ecological study involves the ecosystem level of organization? A. The effects of human activities on biogeochemical cycling B. The effects of an invasive plant species on bird nesting sites C. The effects of a disease on population size D. The effects of competition on survival

Weegy: The examples of an ecological study that involves the ecosystem level of organization is The effects of human activities on biogeochemical cycling.
Ceciliane|Points 591|

User: 7. Which of the following doesn't describe an MDC? A. Its age structure diagram resembles a pyramid. B. It has undergone the demographic transition. C. It's highly industrialized. D. It generally experiences replacement reproduction.

Weegy: Which of the following doesn't describe an MDC A. [ Its age structure diagram resembles a pyramid Age structure diagram representing a pyramid shows the majority of the population is young, which is due to high birth rates, and low life expectancy, prominent in LDC's. People have less babies in MDC's, and expect to live longer, which makes the age structure diagram look more uniform. ]
cadbury19020|Points 159|

User: 4. Which of the following factors will have a greater impact on a population as the density of that population increases? A. Climate B. Predation C. Weather D. Natural disaster 4. Which of the following factors will have a greater impact on a population as the density of that population increases? A. Climate B. Predation C. Weather D. Natural disaster

Weegy: Predation will have a greater impact on a population as the density of that population increases.



Question
Asked 3/19/2015 12:21:56 PM
Updated 10/15/2017 12:56:01 PM
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A complex of interconnected food chains in an ecosystem is called a food web.
Added 10/15/2017 12:56:01 PM
This answer has been confirmed as correct and helpful.
Confirmed by Janet17 [10/15/2017 1:52:13 PM]
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18. Solve this equation for A: A ÷ 2 = 4 A. 6 B. 8 C. 4 D. 2
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Updated 3/16/2015 4:35:53 AM
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A ÷ 2 = 4
A = 4*2
A = 8
Added 3/16/2015 4:35:53 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/16/2015 5:10:42 AM]
3. Which of the following best describes a plane? A. The edge of a desk B. A curve in a road C. The point of intersection of two walls D. The surface of a flat table
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Updated 12/21/2015 9:14:12 PM
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The surface of a flat table best describes a plane.
Added 12/21/2015 9:14:12 PM
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Confirmed by yumdrea [12/21/2015 9:23:03 PM]
1. The first major military engagement of the American Revolution took place near A. Philadelphia. B. Saratoga. C. Boston. D. Yorktown.
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Updated 5/19/2015 4:32:17 PM
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The first major military engagement of the American Revolution took place near Boston.


Added 5/19/2015 4:32:17 PM
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Confirmed by Andrew. [5/19/2015 4:36:15 PM]
2. The term suffrage refers to the A. right to vote. B. Soviet labor camps. C. extermination of Jews under Hitler. D. freedom to make one's voice heard.
Weegy: The term suffrage refers to the RIGHT TO VOTE. User: Mark for review (Will be highlighted on the review page) 3. In 1775, the population of the colonies included about _______ African slaves. A. 100,000,000 B. 100,000 C. 500,000 D. 50,000 Weegy: In 1775, the population of the colonies included about 500,000 African slaves. User: Mark for review (Will be highlighted on the review page) 4. In general terms, the heart of any representative democracy is A. suffrage. B. the Senate. C. Congress. D. a legislature. (More)
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Updated 9/7/2017 2:06:10 PM
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In general terms, the heart of any representative democracy is a LEGISLATURE.
Added 9/7/2017 2:16:17 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/7/2017 2:06:11 PM]
14. In modern society, what do we mean when we refer to the division of labor? A. All the jobs people do are connected to other jobs. B. The ways construction jobs are organized C. The specialization of jobs in the medical field D. Splitting work equally between two people
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Updated 11/5/2016 8:24:27 AM
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In modern society, the division of labor means: All the jobs people do are connected to other jobs.
Added 11/5/2016 8:24:27 AM
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Confirmed by yumdrea [11/5/2016 8:32:59 AM]
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