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2 years ago

Which nutrient provides the highest number of calories per gram?

Biology

2 answers:

Sedaia [141]2 years ago

8 0

I think it’s carbohydrates or protein

natima [27]2 years ago

8 0

Fat has 9 calories per gram.
Protein has 4 calories per gram.
Sugar has 4 calories per gram.
Carbohydrate has 4 calories per gram.

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Explain how the processes of sea-floor spreading and magnetic reversal produce bands of oceanic crust that have different magnet

WARRIOR [948]

Explanation:

As the two plates move away from each other in a divergent boundary, the magma from the mantle beneath rises to replace the void created. The magma then cools into a new crust. Before the magma cools, the iron minerals align themselves with the magnetic fields of the earth due to their ferromagnetic properties. These cause the rocks after they are cooled to seem to have bands.

Due to magnetic reversals of the earth's magnetic fields (i.e change in magnetic north and south poles) over several hundred thousand years, these bands will orient differently depending on the then earth magnetic polarity when the magma was cooling.

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For more on seafloor spreading check out;

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3 years ago

Which organisms are prokaryotes? bacteria archaea sunflowers

adoni [48]

Answer:

the bacteria or archaea

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2 years ago

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3. All of the organic molecules are based on which element?

Ulleksa [173]

Answer:

<h2>Carbon. </h2>

Explanation:

Life is based on carbon; organic chemistry studies compounds in which carbon is a central element. The properties of carbon make it the backbone of the organic molecules which form living matter. Carbon is a such a versatile element because it can form four covalent bonds.

<h3>Hope it helps you⚛.</h3>

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2 years ago

Help please ;-; I’ve attached an image of what i need help with. Thanks!

kkurt [141]

Answer:

Explanation:

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2 years ago

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What happens to contraction of a muscle cell if some of the Ca2+ that was released during a contraction is still in the cytoplas

Kazeer [188]

<h2>Muscle contraction in cytoplasm </h2>

Explanation:

Calcium stays in the sarcoplasmic reticulum until discharged by an improvement. Calcium at that point ties to troponin, causing the troponin to change shape and expel the tropomyosin from the coupling destinations. Cross-connect stick proceeds until the calcium particles and ATP are never again accessible.
ATP is basic to get ready myosin for official and to "revive" the myosin.
When the actin-restricting destinations are revealed, the high-vitality myosin head overcomes any issues, framing a cross-connect. When myosin ties to the actin, the Pi is discharged, and the myosin experiences a conformational change to a lower vitality state. As myosin consumes the vitality, it travels through the "power stroke," pulling the actin fiber toward the M-line.

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2 years ago