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natta225 [31]
3 years ago
12

Please help please help

Biology
2 answers:
Ostrovityanka [42]3 years ago
4 0
It should be B i as well had the same answer and i got B correctly hope this helped you :)
Paha777 [63]3 years ago
3 0
D I think but I think d
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You dilute an unknown sample of bacteria to 1 x 10-6 and plate out 10 onto a Petri dish. The next day you count 64 colonies. The
Sveta_85 [38]

Answer:

b

Explanation:

The correct answer would be 6.4 x 10^6 cells/ul.

For 1 x 10-6 dilution, the plating factor is 10^6. To find the number of bacteria in the original sample, the plating factor is multiplied by the colony count per ul.

<em>Number of viable bacteria = plating factor x colony count/ul</em>

Since 10 ul gives 64 colonies.  1 ul will give:

         64/10 = 6.4 colonies.

Therefore, the viable bacteria in the original sample = 6.4 x 10^6 cells/ul

The correct option is b.

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3 years ago
A ribozyme is a catalytic protein that assists in the processing of the tRNA, true or false
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In tRNA biosynthesis, ribozymes, which are sub units found in the ribosomes, are essential. hence it is TRUE.
6 0
3 years ago
Please help me. i’m confused and don’t know the answer
Cerrena [4.2K]

Answer: The correct answer is C: decreased use of fossil fuels.

Explanation: The burning of fossil fuels causes the release of CO2 and other harmful substances into the atmosphere. Fossil fuels are fuels that are burnt by power plants and such to generate power.

3 0
3 years ago
Is uranium a non renewable resource
Trava [24]

Uranium is not a renewable resource.


Hope this Helps!!!

5 0
3 years ago
Which of the following statements about the phosphorus cycle is false? The main abiotic reservoir for phosphorus is in the soil.
garik1379 [7]

Answer:

Answer for the question:

Which of the following statements about the phosphorus cycle is false? The main abiotic reservoir for phosphorus is in the soil. Plants release dissolved phosphate ions into the soil. Guano can be used by farmers to add phosphorus to the soil. Phosphates that drain from soils into the sea becomes part of new rock and will cycle back into living organisms.

is given below.

Explanation:

The correct answer is given below.

Soil is not the main reservoir for the phosphorous. The main antibiotic phosphorous is in the rocks.

6 0
3 years ago
Read 2 more answers
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