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vlada-n [284]
3 years ago
14

The primary neurotransmitter at the neuromuscular junction is

Biology
1 answer:
aleksandrvk [35]3 years ago
5 0

Answer:

<u>acetylcholine</u>

Explanation:

In the pre-synaptic knob there are vesicles which contain a transmitter substance called acetylcholine. When an impulse reaches the synaptic knob, it stimulates the vesicles to move towards the pre-synaptic membrane releasing the acetylcholine.

The transmitter substance makes the membrane permeable. The neuromuscular junction contains the sensory neurone(afferent), motor neurones(efferent) and the relay neurones(connector).

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Verdich [7]
The answer would be C.
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3 years ago
Most aquatic organisms can survive only within a specific pH range. An increase in the number of hydrogen ions (H+) in a lake wi
Ipatiy [6.2K]

Answer:

An increase in the number of H+ ion in the lake with many aquatic would cause cell shrinkage by the removal of water from the cell.

Explanation:

Every organism tries to maintain a constant PH inside their body to regulate the homeostasis of their body.

                     An increase in the number of H+ ion or proton in a lake will increase the osmotic pressure of the water present in the lake.As the osmotic pressure of Lake"s water is increased it will draw water out from the the cells of aquatic organism causing the cells to shrink thus decreasing the volume of the cell and if the H+ ion concentration rises at a high level cell death can occur.

3 0
3 years ago
Occurs when the individual inherits only one (female) X Occurs when the individual inherits only one (female) X chromosome
aniked [119]

Turner syndrome occurs when the individual inherits only one (female) X chromosome.

<h3>What is Chromosome?</h3>

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An individual inheriting only one female X chromosome means that the child will have turner syndrome which is characterized by short height, heart defects etc.

The complete question is:

Which condition occurs when the individual inherits only one (female) X chromosome?

Read more about Turner syndrome here brainly.com/question/953084

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4 0
2 years ago
Thailand has the highest percent of vulnerable forest.<br><br> A. True<br> B. False
ad-work [718]

The answer is f good luck

6 0
3 years ago
Which racial category is most closely related to the eskimo ethnicity?
klasskru [66]

Hi there!

The racial category closest to Eskimos, would be Native American.

Hope this helps!

~Alexa

7 0
3 years ago
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