Por qué son importantes estos elementos — - agua: componente más abundante en los seres vivos - carbono: se encuentra en todas las moléculas y macromoléculas, componente FUNDAMENTAL de los desechos fósiles -nitrógeno: contiene info. Para crear la vida, para formar material genético, componente de ADN y ARN

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ciclos biogeoquímicos

Biologia

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Ciclos biogeoquímicos cuáles son los elementos comunes en la tierra y comunes en las moléculas orgánicas

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Qué son los procesos biogeoquímicos

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En dónde se almacenan estos elementos

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Procesos geológicos que favorecen al ciclo biogeoquímico

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Por qué es importante estos elementos

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Qué ocurre en los ciclos químicos

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One of the important things about temptation is, if I'm going to deal with it I'm going to have to recognize, this is an area of weakness in my life. I have been tempted here before and before and before.

Charles Stanley

I spent the better part of my developing years in Massachusetts.

Betsy Beers

No problem is so deep that it cannot be overcome, given the will of all parties, through discussion and negotiation rather than force and violence.

Nelson Mandela

It is never acceptable for us to be the cause of any child to feel unloved or worthless.

Joel Burns

I pay attention to how I look but I don't let it go too far.

Colbie Caillat

There aren't reasons why you like this song or this piece of music, or don't like it. It's just, it's either right or wrong, you know?

Ethan Coen

I think vampires are different from human beings, but they're sentenced to eternity on this planet. They have the same confusion about love and permanence, integrity, and denial. These qualities really are the same in vampire characters as in humans. I think they're universal themes.

Alexandra Cassavetes

Don't sweat the petty things and don't pet the sweaty things.

George Carlin

Let no feeling of discouragement prey upon you, and in the end you are sure to succeed.

Abraham Lincoln

There is no suspense in inevitability.

Damon Lindelof

He who does not have common sense at age thirty will never have it.

Proverb

I've always thought that people need to feel good about themselves and I see my role as offering support to them, to provide some light along the way.

Leo Buscaglia

To me the arcade experience is the ultimate gaming experience.

Eugene Jarvis

I am not saying that during the Second World War Germany did not, under the leadership of the National Socialist government, commit crimes.

Ernst Zundel

If you want someone else to do a task, don't do it yourself.

Gretchen Rubin

We found out that, contrary to what many people thought, in the immune system, genes can change during the life cycle of the individual.

Susumu Tonegawa

Adolescents are still children in that they can't yet tell the difference between make believe and fiction.

Heather O'Neill

I believe in transparency.

Hillary Clinton

The last temptation is the greatest treason: To do the right deed for the wrong reason.

T.S. Eliot

Westerners know the difference between a talker and the real deal. If Rick Perry wasn't right to be governor of Texas, why should he be president?

Dick Cheney

If I were running the world I would have it rain only between 2 and 5 a.m. Anyone who was out then ought to get wet.

William Lyon Phelps

Do you want to be an artist and a writer, or a wife and a lover? With kids, your focus changes. I don't want to go to PTA meetings.

Stevie Nicks

I had a lot of guilt as a single mother trying to raise a child. I had to go to work and Jeffrey was screaming that he didn't want me to. You have to give yourself permission to let go of the guilt.

Sherri Shepherd

To keep ourselves grounded in the Lord's Church, we can and must train our eyes to recognize the power of the Lord in the service of those He has called. We must be worthy of the companionship of the Holy Ghost. And we need to pray for the Holy Ghost to help us know that men who lead us hold this power.

Henry B. Eyring