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Bingel [31]
3 years ago
10

How many neuromuscular junctions are in each muscle cell

Biology
1 answer:
yuradex [85]3 years ago
5 0

Answer: One

Explanation:

A neuromuscular junction is a chemical synapse between the muscle fibre and the motor neuron. It helps the motor neuron to send a signal to the muscle fibre, triggering contraction in the muscle.

One Muscle Fiber has one neuromuscular junction in most skeletal muscles. A mature neuromuscular junction is innervated by one motor nerve terminal ; thus, the relationship between a given muscle fibre and motor neuron is one-to-one.

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Give two ways in which saliva aids digestion. ​
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Explanation:

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6 0
3 years ago
What conditions make for a violent volcanic eruption?
Airida [17]
B. Magma with high silica content.
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4 0
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Alexis knows that different forms of water can affect erosion differently. She wants to build a model to compare different forms
Natasha_Volkova [10]

Answer:

1. Obtain two identical containers and dry sand.

2. Shape equal amounts of sand into a  "slope on the side of"  each container.

3. Spray water on the sand in one container. The sprayed water represents "rainfall" .

4. In the other container,  "place ice cubes to melt on the sand. This represents snow or glaciers." .

5. Observe and record the changes in the sand.

6. Analyze differences between the two containers.

Explanation:

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8 0
3 years ago
When studying animal behavior, the distribution of organisms within a choice chamber can be studied to identify animal preferenc
Komok [63]

Answer:

c

Explanation:

Random distribution of the Isopods should be 50/50 in A and B.

Chi-square = \frac{(O - E)^2}{E} where O = observed frequency and E = expected frequency

Chamber         O                    E             Chi-square

  A                   18                   10             \frac{(18 - 10)^2}{10} = 6.4

  B                    2                    10             \frac{(2 - 10)^2}{10} = 6.4

<em>Total Chi-square </em>= 6.4 + 6.4 = 12.8

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<em>Tabulated Chi-square</em> (α = 0.05) = 3.8415

The calculated Chi-square exceeds the critical value, hence, it is significant and not due to random.

<em>The correct option is </em><em>c</em><em>.</em>

4 0
3 years ago
What happens to the warm, less dense material inside earth? (WILL MARK BRAINLIEST!!) HURRY
Leokris [45]

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