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Molecules of a substance are able to move between cells. What are the two main processes by which this occurs? What is the main difference between these two processes?

Within cells the two main forms of cellular exchange are diffusion and osmosis. These two terms can sometimes be mixed up as they both mean "the movement of molecules of a substance from an area of h...

TD
3446 Views

Explain why Germany started World War Two

When writing a response to this question, you should consider a range of reasons that led them to entering the war. One of the main reasons is explained below:

The hatred for the Treat of Versaille...

WA
Answered by Will A. History tutor
4719 Views

What is eutrophication?

Eutrophication is a result of nitrogen rich compounds leeching from farm land fertilizer/manure or other pollution methods to the river water ecosystem. The all of a sudden nitrogen rich environment in th...

FS
Answered by Festus S. Biology tutor
9087 Views

In d block chemistry, Copper and Chromium electron configuration do not follow the electron filling trend , why is this?

Copper has a [Ar]4s1 4d10 whereas Chromium has a [Ar]4s14d5 electron configuration as this d shell configuration of either half full d shell (5 electrons) with only one electron per orbital or fully full ...

FS
Answered by Festus S. Chemistry tutor
7758 Views

How do I solve simultaneous equations given a linear and a quadratic equation?

Let's use the following example: y - x = 3 y^2 + x^2 = 29 . Firstly, the second equation is the quadratic equation because it has a y-squared term. The first equation is linear because it doesn't have any...

EH
Answered by Erica H. Maths tutor
5435 Views

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