Top answers

Explain what is meant by counter current exchange in fish? Describe how it works and what adaptations the gills have to assist it.

Counter current exchange is the mechanism in which oxygen enters the blood in fish. Blood flows in the opposite direction to the water that flows over the fish's gills. Fish gills have gill filaments and the...
KF
Answered by Katie F. • Biology tutor
73985 Views

To what extent was Neville Chamberlain's policy of appeasement responsible for the rise of Hitler and the eventual start of the Second World War?

Although Neville Chamberlain is often blamed for being solely responsible for allowing Hitler to mobilise a Germany that was spoiling for war, the extent to which this is the main reason is limited. A Europe...
HF
Answered by Harry F. • History tutor
3423 Views

How do I choose which term do I differentiate/integrate when I am integrating by parts

What you would do in this scenario is consider all the terms in the expression you are integrating. You then want to go through the acronym LATE to choose which term you should differentiate.L stands for Log...
FP
Answered by Federico P. • Maths tutor
4311 Views

How should I approach comparing poetry, prose and drama within one essay?

First of all, think about how each text handles the overall themes and ideas that you will be discussing, and how the texts might link with one another. From here, work out the basic argument you want to ori...
EB
6658 Views

By considering Newton's second law and his law of gravitation, derive an expression for gravitational field strength g in terms of its mass, m, the distance from its center of mass, r, and the gravitational constant, G.

Newton's second law of motion is F = ma and his law of gravitation is F= GMm/r^2.g is the acceleration of free fall and can be substituted for a, F = mg.We can therefore see that g = F/m and can use that to ...
RM
Answered by River M. • Physics tutor
2537 Views