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kati45 [8]
3 years ago
5

1)

Biology
1 answer:
timurjin [86]3 years ago
6 0

Answer:

Explanation: minutes 60

Temperature (°C) D) 32 °C

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Please i need to check my answer I have a timed test I think its C but I don't know HELP PLEASE I know it's not A cuz I got it w
tatuchka [14]

Explanation:

When the barge enters the northern most part of the river, the southward current is 0.67 m/s. How will the barge be affected? The barge will move slower. The direction of the barge will change.

5 0
2 years ago
One g of fecal matter was suspended in 99 ml saline solution (tube 1). After mixing gently but thoroughly, one ml from tube 1 wa
malfutka [58]

Answer: the cfu/g Gram-negative bacteria in the fecal sample is C = 3.0 × 10^3

Explanation:

We know that; Gram negative bacteria looks  pale reddish in color under a light microscope from Gram staining.

therefore

There are 30 red bacterial colonies counted.

1 mL of from tube 1 was removed and added to tube with 99 mL saline (tube 2) dilution is 1/100.

transferred volume  into the plate is 1 mL.

Now, we have to determine the cfu/g Gram-negative bacteria in the fecal sample

Formula to calculate CFU/g bacteria in fecal sample is expressed as;

C = n/(s×d )

where C is concentration (CFU/g) , n is number of colonies , s is volume transferred to plate , d is dilution factor.

so we substitute

C = 30 / ((1/100) × 1)

C = 30 / 0.01

C = 3000

C = 3.0 × 10^3

THERFERE, the cfu/g Gram-negative bacteria in the fecal sample is C = 3.0 × 10^3

3 0
3 years ago
What is true about relative humidity?
nekit [7.7K]

Answer:

D. It is the general term used to describe the amount of water vapor in the air

Explanation:

It's been a while since I've taken meteorology (2 years), but I think this is the correct answer because humidity in general refers to the amount of water vapor in the air and as we are discussing relative humidity, it cannot indicate the actual quantity of water vapor in the air (thus ruling out B). Therefore, D makes the most sense. I believe C refers to adiabatic cooling.

5 0
3 years ago
Read 2 more answers
Darwin's finches evolved on an island. What is the main reason that islands often provide good examples of evolution?
Igoryamba

Answer:

They allow for automatic biogeographic isolation

3 0
2 years ago
Density involves the amount of a material in a certain volume. When a material changes phases, it changes in density in a predic
Evgesh-ka [11]

The Liquid state is more dense than the solid state.

3 0
2 years ago
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