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ELEN [110]
2 years ago
8

The nucleus serves as

Biology
2 answers:
Svetllana [295]2 years ago
7 0

Answer: the brain cells are the most important

Xelga [282]2 years ago
4 0
The brain of the cell most important
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Metamorphic rocks used to be igneous and sedimentary rocks. They were changed into metamorphic rocks by
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An allosteric protein demonstrates a decrease in its Kg for molecule Y as the concentration of molecule X increases. Based on th
djyliett [7]

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X is negative heterotropic modulator

Explanation:

In allosteric regulations, modulators are molecules that causes a change in the conformation of an enzyme, hence, resulting a change in enzyme activity. It can lead to a decrease or an increase of the enzyme.  When a molecule decreases the enzyme activity it called a negative modulator, when it increases or activates the enzyme activity, it is called a positive modulator.

A positive or negative modulator can either be homotrophic (substrate acts as modulator) or heterotropic (another ligand acts as modulator).

In the example above, X is negative heterotropic modulator, because the modulator is different from the substrate and it also decreases the enzyme activity.

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2 years ago
Which statement describes the moment magnitude scale? A. It measures only small earthquakes. B. It collects data using a seismog
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Answer:

The moment magnitude scale is a scale that rates earthquakes by estimating the total energy released by an earthquake . Estimating the total amount of energy released, enables comparison of earthquakes more accurately.

This scale can be used to rate earthquakes of all sizes, near or far. The following statements describe the moment magnitude scale:

B. It collects data using a seismograph.

D. It estimates the total energy released from an earthquake.

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Explanation:

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What elements are find in a high proportion in earths crust
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<span>The elements that are found in a high proportion in Earth's crust are oxygen, aluminium, iron, calcium, potassium, sodium, and magnesium. But for your Option, I think it is B) Oxygen and Silicon. This is because Oxygen makes 46.6% while Silicon makes 27.7% of the Earth crust.</span>
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He is correct, the correct answer is

B. club mosses, horsetails, and ferns.

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