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Humans have reflexes. Describe the route of an impulse through a reflex arc.

First of all, the IMPULSE IS DECTECTED by receptors.SENSORY neurone passes impulse onto RELAY NEURONE in SPINAL CORD.RELAY neurone passes impulse onto MOTOR neuroneMOTOR neurone passes impulse to EFFECTOR MU...
OD
Answered by Ozbil D. • Biology tutor
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Describe the role of the myelin sheath surrounding the axon

It is important to remember that the myelin sheath is essential for our nervous system.It forms a layers of fatty material around the axon. This allows INSULATION, which, in turn, allows quicker conduction o...
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Answered by Ozbil D. • Biology tutor
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How do I analyse an unseen poem in the exam?

First of all - don't panic! Read the poem through once. Then read it again, underlining any parts that stick out to you. Think about whether you can spot any figures of speech such as metaphors, similes, rep...
HB
Answered by Hannah B. • English tutor
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Explain why Aluminium and Sulfur do not fit the expected trends of first ionisation energies of period 3?

Firstly, we should define the first ionisation energy The first Ionisation Energy is the energy required to remove one mole of electrons from one mole of gaseous atoms to form a mole of gaseous ions, each wi...
JG
Answered by Jake G. • Chemistry tutor
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Solve the simultaneous equation: 3x+y=-2, -7x+5y=34.

3x+y=-2 ...1) -7x+5y=34 ...2) Using the substitution method: Rearrange equation 1): y=-3x-2 ...1)) substitute equation 1)) into eqaution 2) -7x +5(-3x-2)=34 -7x-15x-10=34 -22x=44 x=-2 subsitute x into 1)) y=...
SJ
Answered by Shaan J. • Maths tutor
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