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What is a reflex arc?

The three different types, sensory, relay and motor neurons can all be used in a reflex arc; a relay neuron is not always necessary but often is included. It is easiest to remember them in that order as that...
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Answered by Bella B. Biology tutor
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List the first 4 halogens as they appear in the periodic table as they appear. What does your answer suggest about their relative reactivity?

Fluorine, Chlorine, Bromine, IodineIf you write the electronic structure to start, F = 2,7, Cl = 2, 8, 7, Br = 2, 8, 8, 7, I = 2, 8, 8, 8, 7. This shows that they all have 7 outer electrons so we can tell th...
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Answered by Joseph I. Chemistry tutor
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Discuss the political effects of automation

First give time to question the question. Look for key words that you can break down; in this example automation is a very broad concept and could use defining, and 'political' effects begs the question of s...
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How is water reabsorption carried out in the kidney?

When water levels are low in the blood, osmoreceptors in the hypothalamus detect this change and trigger the posterior pituitary gland to release a hormone called ADH. ADH binds to receptors on the cell memb...
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Answered by Jenna P. Biology tutor
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Outline the Logical Problem of Evil and explain why it is a problem for the thiest.

The Logical Problem of Evil alleges that there is a logical inconsistency between the existence of God, as traditionally conceived, and the existence of evil. The formalised version of the argument reads:A. ...
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Answered by Joshua T. Philosophy tutor
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