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Aleks04 [339]
3 years ago
15

The infections that people get while they are in hospitals are commonly resistant to multiple drugs. What is a reason for the in

creased number of drug-resistant bacteria being found in hospitals?
The options are:
Increased use of antibiotics in hospitals
increased number of diseases in patients
decreased sanitation facilities in hospitals
decreased microbial growth in hospitals
Biology
1 answer:
Inessa [10]3 years ago
4 0
Increased use of antibiotics since the few that are immune will survive and reproduce and will out grow others that arent.
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Which of the following statements about asteroids is true? Asteroids are all very large and are mostly made up of stone, iron an
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Asteroids vary greatly in size and are mostly made up of frozen water and gas. This one is true. They are said to be "mostly formed of ice and gas" as they rarely can be found consisting of stone, nickel and iron. These are extremely dangerous in our Universe.
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What is a benefit of using coal for energy ?
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Chemical reactions change what and produce what?
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chemical reactions change reactant and produce new substance called products.

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3 years ago
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We are studying 3 strains of bacteria, with populations p1, p2, p3, in an environment with three food sources, A, B, C. In a day
Nastasia [14]

Answer:

The population of each bacteria in 1, 2, 3 are 12, 8, and 7 respectively.

Explanation:

From the given information:

For  food source A; we have:

3P₁ + P₂ + 2P₃ = 58    units of food A ---- (1)

For food source B; we have:

2P₁ + 4P₂ + 2P₃ = 70   units of food B  ---- (2)

For food source C; we have:

P₁ + P₂  = 20   units of food C    ----- (3)

From equation (1) and (2); we have:

3P₁ + P₂ + 2P₃ = 58

2P₁ + 4P₂ + 2P₃ = 70

By elimination method

 3P₁ + P₂ + 2P₃ = 58

-

 2P₁ + 4P₂ + 2P₃ = 70

<u>                                       </u>

<u> P₁  -   3P₂   + 0    = - 12    </u>

P₁ = -12 + 3P₂   ---- (4)

Replace, the value of P₁  in (4) into equation (3)

P₁ + P₂  = 20

-12 + 3P₂ + P₂  = 20

4P₂ = 20 + 12

4P₂ = 32

P₂ = 32/4

P₂ = 8

From equation (3) again;

P₁ + P₂  = 20

P₁ + 8 = 20

P₁  = 20 - 8

P₁  = 12

To find P₃;  replace the value of P₁ and P₂ into (1)

3P₁ + P₂ + 2P₃ = 58

3(12) + 8 + 2P₃ = 58

36 + 8 + 2P₃ = 58

2P₃ = 58 - 36 -8

2P₃ = 14

P₃ = 14/2

P₃ =  7

Thus, the population of each bacteria in 1, 2, 3 are 12, 8, and 7 respectively.

4 0
3 years ago
Why or how are calories "wasted" during gluconeogenesis?
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3 0
3 years ago
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