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Katarina [22]
3 years ago
15

Which organic compound, used for stored chemical energy, contains carbon ,hydrogen,oxygen and often phosphorus

Biology
1 answer:
slega [8]3 years ago
3 0
The organic compound is “LIPIDS”. Excess fats in the body are usually stored in the adipose tissues for use in case of energy emergency.
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Explain what it means when a molecule is referred to as being hydrophobic or hydrophilic. Give an example.
Fynjy0 [20]
Hydrophobic is when it cannot dissolve in water and hydrophilic is when it can. an example is a phospholipid in the cell membrane- the the tails are hydrophobic and the heads are hydrophilic.
5 0
3 years ago
Which of the following events triggers the subsequent steps of excitation-contraction coupling?
mario62 [17]

Excitation-contraction coupling refers to the series of events that begins with the excitation of the sarcolemma in response to stimulation by a neurotransmitter, and results in the release of calcium ions from the sarcoplasmic reticulum.

Hence, option D is the 1st process that starts the excitation-contraction coupling.

3 0
3 years ago
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Before returning to the heart, blood from the digestive tract first passes through the..
loris [4]

Answer: Liver

Explanation:

The hepatic portal system of liver connects the capillaries of the gastrointestinal tract to the liver. The nutrient rich blood from the gastrointestinal tract reaches the liver.

The blood that is returned back to the heart is first bought to liver and then it is returned back to the heart.

From the liver after processing the blood goes into heart for further processing.

Hence, the correct answer is option d

7 0
3 years ago
How do scientists explain the discovery of crinoids in the Wasatch Mountains?
Nostrana [21]
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Which of the following answer choices shows the correct way to balance this reaction:
sergij07 [2.7K]
The answer is 4Fe+3O2→2Fe2O3
8 0
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