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Mariulka [41]
3 years ago
9

What is the main purpose of the executive branch of government?

Biology
1 answer:
SCORPION-xisa [38]3 years ago
7 0
It's to be sure the laws of the nation are followed and that the responsibilities of government are fulfilled
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In regard to blood circulation, if you begin with oxygen-poor blood that reaches the heart from the body and is pumped through a
andrew-mc [135]

The cycle runs like this:

Deoxygenated blood enters from the body to the heart via the superior/inferior vena cava. It goes directly to the right atrium and down to the right ventricle. From there it'll pass through the pulmonary artery into the lungs where diffusion will happen in the capillaries. Gas exchanges will occur and the blood will become oxygenated and return to the heart via the pulmonary vein. From the pulmonary vein it will enter back into the left atrium and then will give the final pump of oxygen rich blood into the aorta and then into the entire body.

6 0
3 years ago
The energy required to run the Calvin cycle reactions of photosynthesis comes from which two substances produced during the ligh
Lelu [443]

Answer:

a. ATP and NADPH

Explanation:

Light-dependent reactions of photosynthesis include splitting of water in the presence of sunlight and release of electrons. The electrons move from the reaction center of the PS-II via electron carriers to the PS-I. From the reaction center of PS-I, the electrons finally reach NADP reductase and reduce NADP into NADPH.

During this electron transfer via electron carriers, a proton concentration gradient is generated across the thylakoid membrane. The energy of this gradient is used to drive ATP synthesis. ATP and NADPH formed during the light-dependent phase of photosynthesis are then used during the reactions of the Calvin cycle.

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3 years ago
Explain one way that HYDROGEN GAS is commercially produced
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Explanation:

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As of 2020, the majority of hydrogen (∼95%) is produced from fossil fuels by steam reforming of natural gas, partial oxidation of methane, and coal gasification. Other methods of hydrogen production include biomass gasification and electrolysis of water.

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2 years ago
How are the cells at the end of meiosis different from the cell at the beginning of meiosis
blondinia [14]
There are now 2 cells instead of 1
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What things make studying people difficult
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