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aleksklad [387]
3 years ago
12

What happens if an atom gains 2 electrons to fill its valence shell

Biology
1 answer:
lesya [120]3 years ago
4 0
B. It becomes more stable and will have a  -2 charge.
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Darwin hypothesized that a new species could appear through small changes in an ancestral species. Which observation that he mad
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Why does the rate of photosynthesis increase and then reach a plateau as the concentration of co2 around a plant increases?
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Light intensity increases also, but it gets to a point that the temperature increases and denature the enzymes involved so a plateau results.

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Which of the following is not true about<br> hypothesis?
svetoff [14.1K]
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Read 2 more answers
Staphylococcus epidermis appears _________, whereas escherichia coli appears _________ after the gram stain.
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Staphylococcus epidermis appears stained, whereas Escherichia coli appears stainless after the gram stain.

Staphylococcus is a Gram-Positive Bacteria i.e. it takes up the Gram stain.

Escherichia coli or E. coli is a Gram-Negative Bacteria i.e. it does not take up the Gram stain.

Gram Staining is done by immersing the bacterial sample in a solution of dye and then observing it under microscope after proper rinsing.

Gram Positive Bacteria are those bacteria that show a positive outcome on staining. Gram Positive Bacteria appear Stained after staining.

Gram Negative Bacteria are those bacteria that show a negative outcome on staining. Gram Negative Bacteria does not take up the stain and appear stainless.

The epidermis of Staphylococcus which is a Gram-Positive Bacteria appears to take up the stain whereas Escherichia coli which is a Gram-Negative Bacteria does not take up the stain.

Staphylococcus epidermis appears stained, whereas Escherichia coli appears stainless after the gram stain.

Learn more about Gram-Positive Bacteria here, brainly.com/question/13756030

#SPJ4

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Is all bacteria bad?
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The second one most bacteria is good as long as they are in the multi cellular form<span />
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