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How is a nervous impulse transmitted across a synapse?

An action potential (AP) reaches the pre-synaptic membrane. This causes the voltage-gated calcium channels to open, and calcium ions flow down their concentration gradient into the pre-synaptic terminal. Thi...
TN
Answered by Teodora N. • Biology tutor
2775 Views

Was Trotsky’s leadership of the Red Army responsible for the survival of the Bolshevik Revolution?

It is undoubtable that Trotsky’s leadership of the Red Army played a significant role in ensuring the Bolshevik Revolution survived the civil war of 1918-1921. However, there are other factors that also cont...
AZ
Answered by Abigail Z. • History tutor
3890 Views

Find the equation of the the tangent to the curve y=x^3 - 7x + 3 at the point (1,2)

y C =x 3 - 7x + 3 ------> equation of curve.y T =mx+c ----------------> equation of tangent, where m is the gradient of the graph and c is the value of the y-intercept (the value of y when x=o)To find ...
MB
Answered by Matthew B. • Maths tutor
3801 Views

Write (1+2i) /(2-i) in form x+iy

(1+2i) (2+i)/(2+i)(2-i) = (2-2+4i+i)/5 = 5i/5 = i
RM
3477 Views

What are the German cases, and when do I use them?

There are four cases in the German language: nominative, accusative, dative, and genitive. There are different rules on when to use each specific case.Nominative: The nominative case is used for the subject ...
JS
Answered by Jennifer S. • German tutor
2330 Views