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A Level

What factors affect the speed at which an action potential travels?

There are several factors affecting the rate and speed of an action potential:

1. Myelin sheath - This covers some of the nodes and acts as an electrical insulator where the a...

Z(
96134 Views

What is the difference between 'por' and 'para'?

Although both these words can mean 'for' in English, the variations of translations mean 'por' and 'para' have very distinct uses. Although confusing at first, it is very easy to learn when to use each co...

KP
Answered by Kate P. Spanish tutor
4458 Views

Why do past participles that take 'avoir' sometimes agree with the noun?

The answer is the preceding direct object.

Take the sentence the boy ate the apple.

Here we have a subject (the boy), followed by the verb (ate) and then the object (the apple...

JH
Answered by Jessica H. French tutor
4420 Views

When can I use venire as an auxiliary verb to form a passive tense?

Venire can be used as an auxiliary verb to form a passive tense when it is conjugated in a simple tense (i.e. present, imperfect etc.).

DA
Answered by Daniel A. Italian tutor
5704 Views

How can I find the area under the graph of y = f(x) between x = a and x = b?

You can find the area under this graph by evaluating the definite integral of y = f(x) with respe...

JR
Answered by Jonathan R. Maths tutor
5190 Views

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