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mote1985 [20]
3 years ago
13

Sam drives an excavator at an open surface strip coal mine. Which type of coal is he most likely to collect closest to the surfa

ce?
-anthracite
-subbituminous
-lignite
-bituminous
-pitchblende
Biology
2 answers:
olasank [31]3 years ago
8 0

The answer would be Iignite.

Kobotan [32]3 years ago
5 0
I think the answer is Bituminous not sure though
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The white blood cell identifies the toxin produced by the pathogen and creates antibodies to fight the pathogen
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The fact that cats and humans are both classified as mammals provides us with which minimum of information?
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If an area has very little permeability, such as a city where the ground is mostly concrete, what will happen to most of the rai
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C

Explanation:

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3 years ago
A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (
Paul [167]

Answer:

frequency of the blue (B) allele = 0.4142

frequency of the red (R) allele = 0.5858

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

Explanation:

Frequency of blue allele is

Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

\frac{302}{2970} + \frac{1}{2} \frac{1857}{2970} \\= 0.1016 + 0.3126\\= 0.4142

Frequency of other allele

1- 0.4142\\= 0.5858

Chi Square test

See the attached file

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

7 0
3 years ago
Which best demonstrates something scientists across all scientific disciplines share?
alex41 [277]

Answer:

B) detailed record keeping

Explanation:

I just took this test and this was the correct answer.

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3 years ago
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