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Orlov [11]
3 years ago
8

Which of the following is a need of most plants?

Biology
1 answer:
Mrac [35]3 years ago
7 0
Carbon dioxide and photosynthesis
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AleksAgata [21]

Answer:

it is d

Explanation:

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3 years ago
To test for protein, you added Biuret solution and
OLEGan [10]

Answer:

Water sample showing pink/purple color is an error.

Explanation:

Biuret is a blue color reagent that changes its color to pink/purple whenever it detects protein in a sample. Water don't contain proteins so it should not show pink/purple color instead it should maintain the blue color. Food items generally contain proteins so it show pink/purple color but it showed blue color.

Error might have caused by wrong marking of the samples, test tube marked with Water might contain a mystery food while Mystery food tube might contain water.

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The resting cell normally has a net negative charge with respect to the outside of the cell. what is this state called?
Zolol [24]
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3 years ago
HELP!!! How does the equipment shown in the picture reduce the impact of an oil spill on marine life? A. It absorbs the oil as i
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D

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5 0
2 years ago
- Chargaffs rule states...
denis23 [38]

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Option C

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For chagarff's rule, it clearly states that DNA from any cell of any organisms be it prokaryotes or eukaryotes should have the basic 1 (purine): 1 (pyrimidine) ratio. Particularly, amount of adenine should be equal to thymine, and guanine equal to cytosine. This is in particular reference to organisms that have double stranded DNA.

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