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sveta [45]
3 years ago
15

Biology Help, I put on extra points.

Biology
2 answers:
Katena32 [7]3 years ago
8 0
In order from the first one to the last one.
1
1
3
1
3
1
SVETLANKA909090 [29]3 years ago
6 0
The deoxyribose sugar
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Inorganik bilesikler metobolik faaliyetlerde duzenliyici olarak kullanlir mi​
antiseptic1488 [7]

Answer:

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8 0
3 years ago
Which cell has both a cell wall and a cell membrane?<br><br> please answer quickly its urgent
mrs_skeptik [129]

Answer:

Plant Cell

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7 0
3 years ago
Bio
garik1379 [7]

Answer:

Down below

Explanation:

1. if you have a lack of oxygen while in a state of heavy movement your heart will stop pumping blood because your whole body isnt receiving enough oxygen and now everything will begin to shutdown

2. you cant stop anything unless you get oxygen , it will take longer for you to die with lack of oxygen or no oxygen at all for that matter

3. atheletes will usually take heavy breaths of oxygen before holding their breaths for longer periods of time

3 0
3 years ago
Once a neuron is stimulated and the membrane potential is depolarized, the depolarized axonal membrane is helped to return to it
Vadim26 [7]

Answer:

Explanation:

The cell membrane separates the cell from the outer environment. The extracellular fluid contains the sodium ions (Na+), chloride ions (Cl-), while intracellular fluid contains potassium (K +) and negative anions.

The potential difference arises when the membrane is selectively permeable to some ions. The resting potential is -70mV.  

When the neurons get excited, the sodium ions start to enter by sodium channels.  

Now there are more positive ions inside the cell membrane. It disturbs the resting potential i.e. -70mV. This stage is known as depolarization.

When the inside environment of the cell is more positively charged, the potassium ions start to move out of the cell. It goes out by the voltage-gated channels. Thus resting stage is maintained and it is known as repolarization.

But the initial stability of the cell membrane has to be maintained. To restore the resting stage, the sodium ions start to move out of the membrane and potassium ions enter into the cells again. This is an active transport and has done by the Na+ - K+ pump. Here 3 sodium ions move out and 2  potassium ions pumped into the cell through the plasma membrane.  

Thus the resting potential regains. The potassium ions come back into the cells against the concentration gradient and ATP provides the energy for this phenomena.

4 0
3 years ago
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Have a control. You have to have something to compare your experimental results or else your results could be random chance. 

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3 years ago
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