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Which is a biotic factor that affects the size of a population in a specific ecosystem?
A biotic factor that affects the size of a population in a specific ecosystem is number and kinds of predators in the ecosystem.
Expert answered|Jay901|Points 2174|
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Asked 11/18/2013 1:06:46 PM
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Living organisms require nitrogen to make nitrates and nitrites, which are used to build _______________________. a. sugars c. starches b. proteins d. glucose
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Updated 289 days ago|4/24/2015 1:46:15 PM
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Living organisms require nitrogen to make nitrates and nitrites, which are used to build proteins.

Added 289 days ago|4/24/2015 1:46:15 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [4/24/2015 1:48:41 PM]
A farmer harvests a crop of corn from a large field. He then plants beans, which are legumes, in that same field. Once the beans are growing well, the farmer plows them back into the soil to decay. What would be the advantage of plowing the bean plants back into the soil?
Weegy: The advantage of plowing the bean plants back into the soil is that bean roots contain stored nitrogen, fixed there by bacteria which live on the roots, which acts as fertilizer in the soil. (More)
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Asked 11/12/2013 12:33:40 PM
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The rate at which organic matter is created by producers in an ecosystem is called a. a limiting nutrient. c. an algal bloom. b. fertilization. d. primary productivity.
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Updated 289 days ago|4/24/2015 1:50:27 PM
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The rate at which organic matter is created by producers in an ecosystem is called: primary productivity.

Added 289 days ago|4/24/2015 1:50:27 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [4/24/2015 1:56:57 PM]
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