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777dan777 [17]
3 years ago
14

Which activity would contribute the most to water pollution?

Biology
2 answers:
BaLLatris [955]3 years ago
8 0
Using To Much Fertilizer <span />
Elan Coil [88]3 years ago
5 0
Using too much plant fertilizer is possible if you think about it
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You are conducting a case control study to determine if an association exists between melanoma and indoor tanning. From a statew
Aleksandr-060686 [28]

Answer:

a. Odds ratio = 1.58

b.  Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning

Explanation:

For case  study                                                  

Let 'a'  represent the total population of people with melanomia = 696                                                      

Let 'b' represent the total number of people with melanomia exposed to indoor tanning  =  1107 – 696 = 411 people

For  control study

Let 'c' represent the total population = 1500

Let 'd' represent the total number of people not exposed to indoor tanning = 1500 - (0.428 * 1500)

                                                          =  1500 - 723

Total number of people not exposed to indoor tanning   = 777 people

                                                       

a. Odds ratio = (a/b) / (d/c) = (696/411) / (777/723)

                                                = 1.69 / 1.07 = 1.58

b. Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning.

7 0
3 years ago
Discuss why biologists might have a difficult time classifying this organism
Scrat [10]

Answer:

Explanation:Explanation: Classification of organisms is a hard task cause many organisms have their differences and similarities, whereby making it very complicated in classifying organisms.. All living organisms are classified into groups based on very basic, shared characteristics

8 0
3 years ago
From deep to superficial, the order of the strata of the epidermis is corneum - granulosum - lucidum - spinosum - basale. spinos
kotykmax [81]

Answer:

basale - spinosum - granulosum - lucidum - corneum.  

Explanation:

The order of strata in the epidermis:

  • Basale: it is the deepest stratum. It has one layer of cells called keratinocytes, which are stem cells for the epidermis.
  • Spinosum: The keratinocytes in this layer have spiny shapes. They synthesize cytokeratin and lipids. In this layer, we can also find macrophages.
  • Granulosum: The keratinocytes of the previous layer ascend and synthesize keratohyalin, which is in granules. The keratohyalin helps to join keratin filaments. Also, the cells release the lipids synthesized in the previous layer, and they form a barrier that stops dehydration.
  • Lucidum: it is only on thick skin, like the one in the sole of the feet. The keratinocytes in this layer have expelled the nucleus and now are dead cells. The keratinocytes have a flat shape and form a thin layer.
  • Corneum: it is the most superficial layer. It is made of dead keratinocytes filled with keratin in their cytoplasm. It is a thick layer that suffers desquamation when new dead cells filled with keratin ascend from the previous layer.

4 0
3 years ago
The nurse is teaching a client about healthy methods to lower cholesterol. what change in the diet will aid in lowering choleste
belka [17]
Reducing saturated fats

A client with high cholesterol would need to lower the level of saturated fats in diet
7 0
3 years ago
Primary and secondary air pollutants can co-exist in the atmosphere.<br> a. True<br> b. False
Neporo4naja [7]
I believe this is A, true.
4 0
3 years ago
Read 2 more answers
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