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Describe two ways in which nervous communication differs from hormonal communication

Nervous communication is short range whereas hormonal communicaiton is long range ( acts over whole body)
Nervous communication is much faster than hormonal communication (has to pass through the bl...

Answered by • Biology tutor

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solve this simulatneous equations (with clear algebraic working) : 5x-2y = 33 , 5x + 8y = 18

5x -2y = 33 (substract) 5x + 8y = 18
-10y = 15
y = -1.5
5x + 8(-1.5) = 18
5x = 30
x= 6

Answered by Lara E. • Maths tutor

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Explain how the properties and structure of solid salt change when it dissolves in water

When a salt is solid it forms a a crystaline structure and a fixed ionic lattice. This means the ions are stationary and cannot move in the solution and therefore is unable to conduct electricity. However...

Answered by Lara E. • Chemistry tutor

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What does Le Chatelier's principle say happens to an equilibrium when temperature is changed or a catalyst is added?

The temperature moves the equilibrium differently depending on if the forwards reaction is exothermic or endothermic. If its endothermic the equilibrium moves to the right giving more products. The additi...

Answered by • Chemistry tutor

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State and explain the trend in boiling points of chlorine, bromine, and iodine

Boiling point increases down the group, because of increasing strength of van der Waals (intermolecular) forces. More energy is required to break van der Waals (intermolecular) forces.Follow up questions ...

Answered by Alexander D. • Chemistry tutor

7930 Views