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egoroff_w [7]
3 years ago
5

How has technology been used to address issues to sewage

Biology
1 answer:
vfiekz [6]3 years ago
7 0
The answer is A, as most sewage treatment plants use bacteria to break down and remove nutrients. The main water pollution problem caused by sewage effluent is eutrophication, related to the release of nutrients into rivers and lakes. Nutrients such as nitrogen and phosphorus ions result in high algal growth. Some algal blooms release toxins, and algal blooms also disrupt the natural dissolved oxygen concentration cycles. Fish kills are often because eutrophication has resulted in anoxic conditions. 

Anyway, wastewater treatment plants utilise bacteria to facilitate nitrification or denitrification, which removes ammonia and nitrates/nitrites, respectively.
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Given a population of 100 individuals where 15 are AA, 25 are Aa, and 60 are aa, what is
nata0808 [166]

Answer:

frequency of allele “A” is .39

frequency of allele “a” is .77

Explanation:

hardy weinberg equation

p^2 + 2pq + q^2 = 1 or (A+a)^2

p^2 =  (AA)

2pq =  (Aa)

q^2 = (aa)

AA -> 15/100 = .15

Aa -> 25/100 = .25

aa -> 60/100 = .60

if p^2 = AA = .15 then A = √.15 = 0.38729833462 = .39

if q^2 = aa = .60 then a = √.60 = 0.77459666924 = .77

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2 years ago
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Answer:

it will wither since it has been placed on a fresh water.

Explanation:

since mangrove plant grows on a salty water environment the available water from the mangrove plant will move to a highly concentrated region to a lowly concentrated region

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Which relationship is an example of commensalim?
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One of the most poplar examples of commensalism is the relationship between cattle egrets and livestock. The cattle egret is a common species of heron that is found in most regions of the world, and is mostly seen moving along with herds of cattle. This bird moves about in pastures, and follows livestock such as cattle and horses.
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Summarize how the overharvesting of a single species, such as a baleen whale, can affect an entire ecosystem. Overharvesting the baleen whale would affect the entire ecosystem by changing the relationships among the organisms in the food web.

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