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ipn [44]
3 years ago
12

Growing two species of

Biology
2 answers:
Mice21 [21]3 years ago
7 0

Answer:

Intraspecific Competition

mihalych1998 [28]3 years ago
7 0
The answer is A intraspecific competition
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An action potential involves potassium ions moving ________ the cell and sodium ions moving ________ the cell.
Alecsey [184]

An action potential involves potassium ions moving <u>outside </u>the cell and sodium ions moving <u>inside </u>the cell.

<h3>how does it action potential work?</h3>

Neurons have a negative concentration gradient most of the time, meaning there are more positively charged ions outside than inside the cell. This regular state of a negative concentration gradient is called resting membrane potential. During the resting membrane potential there are:

  • more sodium ions (Na^+ ) outside than inside the neuron
  • more potassium ions (K^+ ) inside than outside the neuron

The concentration of ions isn’t static though! Ions are flowing in and out of the neuron constantly as the ions try to equalize their concentrations. The cell however maintains a fairly consistent negative concentration gradient (between -40 to -90 millivolts). How?

  • The neuron cell membrane is super permeable to potassium ions, and so lots of potassium leaks out of the neuron through potassium leakage channels (holes in the cell wall).
  • The neuron cell membrane is partially permeable to sodium ions, so sodium atoms slowly leak into the neuron through sodium leakage channels.
  • The cell wants to maintain a negative resting membrane potential, so it has a pump that pumps potassium back into the cell and pumps sodium out of the cell at the same time.

Learn more about action potential

brainly.com/question/6705448

#SPJ4

5 0
1 year ago
A combination is a substance formed when two or more different elements combine.<br> True or false
Sergeeva-Olga [200]

Answer:

False

Explanation:

Two or more elements combine to forma COMPOUND.

4 0
3 years ago
Regulatory and basal transcription factors regulate transcription by binding to the promoter.A) True B) False
Licemer1 [7]

Answer:

False

Explanation:

In eukaryotes apart from RNA polymerase, the transcription of genes requires many different proteins called transcription factors. These transcription factors are important to initiate and regulate transcription.

There are two types of transcription factors regulatory and basal transcription factors. Basal transcription factors regulate transcription by binding to a gene promoter and regulatory transcription factor regulates transcription by binding to some regulatory sequences for example enhancers and silencers.  

Therefore only basal transcription factor binds to the promoter for regulating transcription. Therefore the statement is false.

4 0
3 years ago
Guard cells around the stomata provide a way to reduce excessive water loss.<br><br> True<br> False
lions [1.4K]
True 


hoped this helped if so please give me brainlest.
8 0
3 years ago
Which path through the carbon cycle is possible?
Bond [772]
Plant ® atmosphere ® animal
7 0
3 years ago
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