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Flura [38]
3 years ago
5

1. The head is made up of bones that form the

Biology
1 answer:
Nimfa-mama [501]3 years ago
3 0
They form the skull :)
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Explain how the nervous system helps the muscular system control heart rete, digestion, and respiration
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The nervous system helps:

Receptors in muscles provide the brain with information about body position and movement.

The brain controls the contraction of skeletal muscle.

The nervous system regulates the speed at which food moves through the digestive tract.

The nervous system regulates respiratory rate

The nervous system regulates heart rate and blood pressure.


Source: https://faculty.washington.edu/chudler/organ.html



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A student used a microscope to observe a single-celled organism. As he watched ,it looked as if the organism split into two cell
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La destrucción experimental de proteínas presentes en la membrana plasmática afectará a procesos celulares, tales como la (el)
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Answer:

Ósmosis.

Explicación:

La destrucción experimental de proteínas presentes en la membrana plasmática afectará los procesos celulares, como la ósmosis, porque estas proteínas en la membrana plasmática son responsables del intercambio de materiales a través de la célula. Debido a la destrucción de proteínas, no se produjo la difusión de gases y materiales a través de la célula, lo que conduce a la muerte de la célula. La ósmosis es un proceso muy importante que permite a la célula difundir los materiales de desecho fuera de la célula y permite que los gases y la glucosa entren en la célula.

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Fossil fuels have been used for years as a source
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The best answer is (1)

Fossil fuels are commercially available as an energy source.

They are very easy to find. More and more extractions of fossil fuels is going on everyday. With advancement in science and  technology, the refineries and extraction procedures have improved a lot. This makes their availability even better.

Fossil fuels are also easily combustible. Most combustion engines need to be powered with little amount of fuel to produce large amount of energy. Very large amounts of electricity can be  generated  from fossil fuels.

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Which is a trait of an index fossil
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