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Marrrta [24]
4 years ago
5

The nitrogen cycle could not exist without

Biology
1 answer:
Kipish [7]4 years ago
4 0

The nitrogen cycle could not exist without bacteria. Bacteria that lived inside the ground, catch the ntirogen that has been fixed and convert it into nitrate. This nitrate than used as a nutrients during photosynthesis from which the plants produce another fixed nitrogen and completed the cycle.

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Oxygen is carried from your lungs through your blood to all your cells by a molecule called
julsineya [31]

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B.Hemogoblin

Explanation:

these are the cells cariesd by the molecule

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david buss, an evolutionary theorist, has attributed the big five personality traits to evolved ancestral needs. please select t
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It is a true statement that <span>David buss, an evolutionary theorist, has attributed the big five personality traits to evolved ancestral needs. The correct option among all the options that are given in the question is the first option. I hope that this is the answer that has actually come to your desired help.</span>
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The SRY gene is best described as
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a gene present on the Y chromosome that triggers male development

Explanation:

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3 years ago
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Does the park or the forest have greater biodiversity?
Gennadij [26K]

Answer:

The forests

Explanation:

Forests are so much more than a collection of trees. Forests are home to 80% of the world's terrestrial biodiversity. These ecosystems are complex webs of organisms that include plants, animals, fungi and bacteria. Forests take many forms, depending on their latitude, local soil, rainfall and prevailing temperatures.

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3 years ago
¿Qué se puede agregar a un átomo para hacer que un electrón sin valencia en el átomo se convierta temporalmente en un electrón d
NNADVOKAT [17]

Energía.

Explicación:

Generalmente, los electrones giran continuamente en las capas de los átomos. Si estos electrones se encuentran en las capas más externas de un átomo, se denominan electrones de valencia.

Son necesarios para las reacciones químicas de un átomo en particular con otro, a través de sus pérdidas o compartidas.

En los átomos sin valencia, sus capas más externas no tienen electrones en sus capas más externas, tales átomos son estables.

Sin embargo, si se suministra cierta cantidad de energía a dicho átomo, el electrón gana energía y, por lo tanto, se excita.

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Answer:

Energy.

Explanation:

Generally, electrons revolves continuously in the shells of  atoms.if these electrons are located in the outer most shells of an atom,they are refereed to as the Valence electrons.

They are needed for chemical reactions of a particular atom with another,through their loses or sharing.

In Non -valence atoms their outermost shells do not have electrons at their outermost shells,such atoms are stable.

However, if  certain quantity of energy is supplied  to  such atom, the electron  gains energy and therefore becomes excited.

They therefore move from lower energy levels to higher energy levels,and makes the non- valence atom becomes valence temporarily, as they move into the outermost shell.

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