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olga2289 [7]
3 years ago
7

Articles are further divided into subdivisions called

Biology
1 answer:
grigory [225]3 years ago
7 0

The right answer sections.

A section is a division or subdivision of a written work, an article, a journal or any other document. For example, any title could be a section (like the introduction and the conclusion...), a chapter of a document could be a section too (chapter I, chapter II...).

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write a 5-7 paragraph explaining what you think is happening to the earths co2 levels through the year.
jeka57 [31]

Answer:

Climate change has been described as one of the biggest problems faced by humankind. Carbon dioxide is is the primary driver of global warming. Prof Joanna Haigh from Imperial College London explains why this gas has played a crucial role in shaping the Earth's climate.

Carbon dioxide (CO2) has been present in the atmosphere since the Earth condensed from a ball of hot gases following its formation from the explosion of a huge star about five billion years ago.

At that time the atmosphere was mainly composed of nitrogen, CO2 and water vapour, which seeped through cracks in the solid surface. A very similar composition emerges from volcanic eruptions today.

As the planet cooled further some of the water vapour condensed out to form oceans and they dissolved a portion of the CO2 but it was still present in the atmosphere in large amounts.

8 0
2 years ago
1. The primary function of the _________________ is to supply the blood with oxygen so that the blood can deliver oxygen to all
drek231 [11]
The primary function of the respiratory system is to supply blood with oxygen
7 0
3 years ago
Read 2 more answers
Which structure is not made up of RNA?
ANEK [815]

<span><span>d. amino acids

</span>The two factors that determine the shape of a protein </span><span><span>
1. </span> Primary structure. The sequence of amino acids. Amino acids are the building blocks of protein. It is a strong of linearity that can be thousands in length. Moreover, the formation of the amino acid and its system is influenced by its genes’ nucleotides arrangement.  </span> 
<span><span>2. </span>Hence the next factor is how is the structure of the amino acids bended and folded with itself that forms the certain protein molecule and forms the larger complex structure</span><span>
</span>

5 0
3 years ago
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Why are biofuels not necessarily the answer to energy problems?
tiny-mole [99]

1. Vantagens do uso dos biocombustíveis

- Possibilita o fechamento do ciclo do carbono (CO 2 ), contribuindo para uma estabilização da concentração do gás na atmosfera;

- No caso específico do Brasil, há grande área para o cultivo de plantas que podem ser utilizadas para a produção de biocombustíveis ; 

- Geração de emprego e renda no campo (assim evita o inchaço das cidades);

- Menor investimento financeiro em pesquisas (como pesquisas de prospecção de petróleo são muito despendentes);

- O substituto de biodiesel bem o óleo diesel sem necessidade de ajustes sem motor;  

- Redução do lixo no planeta (pode ser usado para produção de biocombustível ); 

- Manuseio e armazenamento de seguros e combustíveis fósseis.

 

2. Desvantagens do uso dos biocombustíveis

- Consome grande quantidade de energia para uma produção;

- Aumento de consumo de água (para irrigação das culturas);

- Redução da biodiversidade;

- Como culturas para produção de biocombustíveis consomem muitos fertilizantes nitrogenados, com liberação de óxidos de nitrogênio, que também são gases estufa;  

- Devastação de áreas florestais (grandes consumidoras de CO 2 ) para plantio das culturas envolvidas na produção dos biocombustíveis ; 

- Possibilidade de redução de produção de alimentos em detrimento do aumento da produção de biocombustíveis , o que pode contribuir para aumentar da fome no mundo eo encarecimento dos alimentos; 

- Contaminação de lençóis freáticos por nitritos e nitratos, participação de fertilizantes. A ingestão dos produtos causadores respiratórios, devido à produção de meta-hemoglobina (hemoglobina oxidada);

- A queima da cana libera grandes quantidades de gases nitrogenados, que retornam ao ambiente na forma de “chuva seca” de fertilizantes, segundo pesquisa do químico ambiental Arnaldo Cardoso e publicada na revista “Unesp Ciência, edição de fevereiro de 2010.  Nos ambientes aquáticos, o efeito é muito rápido: proliferação de algas, com liberação de toxinas e consumo de quase todo oxigênio da água, o que provoca a morte de um grande número de espécies.

5 0
2 years ago
What are the monomers that determine the shape of a protein?
Naddik [55]

Answer:

Chains of amino acids make proteins. They can fold into many different complex shapes.

8 0
3 years ago
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