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IB

Explain the role of Calcium in muscle contraction

Action potential that travels down the motor neuron and reaches neuron terminal causes release of Calcium form sarcoplasmic reticulum. This released calcium will reveal binding sites on actin, hence expos...

ST
Answered by Stasa T. Biology tutor
22915 Views

What is the most difficult topic in HL Maths?

It will mainly depend on your own interests, so there is no definite answer. In my opinion, the whole calculus section is probably the most significant part of the course as it will take up a significant ...

AC
Answered by Ambrose C. Maths tutor
2116 Views

What is the difference between fiscal and monetary policies?

Both fiscal and monetary policies are demand-side policies used by authorities to either boost or decrease the aggregate demand of the economy. Aggregate demand (AD), consisted of consumption (C), investm...

DA
7622 Views

Which test for convergence is the best for which series?

In IB Calculus Option you are introduced to number of different tests. They are Divergence Test, Comparison Test (simple and limit forms), Absolute Convergence Test, Alternating Series Test, Ratio Test an...

JW
2817 Views

Three girls and four boys are seated randomly on a straight bench. What is the probability that the boys sit together and the girls sit together.

To calculate the desired probability we need to calculate the number n of arrangements of the kids such that the girls sit together and the bous sit together and then calculate the total number m of arran...

JW
Answered by Jakub W. Maths tutor
11779 Views

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