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sineoko [7]
3 years ago
8

Which feature is created by deposition from rivers

Biology
1 answer:
bearhunter [10]3 years ago
9 0

Answer:

Explanation:

The answer is meanders

Hope this helps

Plz mark it as brainliest!!!!!!!!!

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_The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of
Hoochie [10]

Complete question:

The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of the postsynaptic membrane to Na and K

  • True
  • False

Answer:

TRUE

Explanation:

The Acetylcholine neurotransmitter is released from the presynaptic cell by the process of exocytosis.

Once the molecule is in the intercellular space, it moves forward the postsynaptic membrane to join its receptor in the motor plate.

Once the joining has occurred, the receptor acquires a channel shape allowing the ion transference that will make possible the modification of the action potential. Ions traffic will consist of the pass of sodium and calcium to the interior of the cell and potassium to the exterior. Quantitatively, the interchange Na-K is the most significant.

K+ follows a concentration gradient, while Na+ follows an electrochemical gradient. The interchange results in an increase of positive charges in the interior of the muscular cell.

Whenever there is a sufficient number of Acetylcholine receptors are active, the depolarization threshold of the motor endplate is exceeded. This activates an action potential that extends to the rest of the muscle membrane.

5 0
3 years ago
How were the iron beds in the oceans formed? im giving 100 points here are your anwser
Ipatiy [6.2K]

Answer:

Its number 4 , After billions of years, cyanobacteria turns into iron; the iron beds are remnants from cyanobacteria. its 7th grade science.

Explanation:

3 0
3 years ago
What occurs at step 3 in the diagram?
Ivanshal [37]

Answer:

A

Explanation:

The restriction enzymes cut the isolated DNA into fragments

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Why do all food chains start with a producer? (in terms of energy transfer)
viktelen [127]
Because there always needs to be something that starts it off. Eg: If there was no grass, there would be no animals.
5 0
3 years ago
How are aerobic respiration and anaerobic respiration different
gogolik [260]

Answer:

Aerobic respiration occurs in the presence of oxygen.

C6H12O6(glucose) –> 2CH3CH2OH(ethanol) +2CO( carbon dioxide) + energy

Anaerobic respiration get energy by breaking down glucose in the complete absence of oxygen.

C6H12O6(glucose) –> 2CH3CH(OH)COOH (Lactic acid) + energy.

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