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olya-2409 [2.1K]
2 years ago
9

Please help for biology

Biology
1 answer:
expeople1 [14]2 years ago
3 0

Answer:

the first one

Explanation:

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¿Cuáles han sido las características que han hecho posible en la vida en la Tierra?
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Answer:

una correcta distancia del planeta respecto al sol, la presencia de  agua en el planeta, la presencia de la capa de ozono, La presencia de los elementos químicos esenciales, y el campo magnético terrestre

Explanation:

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3 years ago
To name the compound written as CuF2, you would write
olga nikolaevna [1]

Answer:

Copper (II) fluoride

Explanation:

Copper (II) fluoride b/c fluoride is charge -1, so if its F2 that must mean copper was +2.

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Metal name + (charge in roman numeral) + non-metal_ide

7 0
2 years ago
In the mid ____________ , ____________ was the first surgeon to introduce aseptic techniques into the operating room in an effor
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alantic and Semmelweis was the first

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2 years ago
When a protein is treated with a reducing agent such as 2-mercaptoethanol it becomes denatured. The interactions stabilizing the
Andreas93 [3]

Answer:

Disulfide linkage/bond

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The tertiary and quarternary structure of the protein is stabilized by Disulfide linkage which is formed between two thiol groups in the protein. 2-mercaptoethanol is a reducing agent that breaks this disulfide bond.  

A protein becomes denature when it loses its native configuration and becomes inactive. So as 2-mercaptoethanol breaks disulfide bond in protein it looses its native configuration and becomes denatured. 2-mercaptoethanol  is used in SDS-PAGE to separate protein subunits. Therefore the correct answer is Disulfide linkage/bond.

8 0
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People who have the o blood type possess
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No because the type o blood is a universal type of blood

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