Answer

The answers provided here reflect the style and content of a typical Examination Board Mark Scheme.  Here is a key to expressions and symbols of a typical Mark Scheme:

Mark schemes usually start by showing the term "Expected Answers"  this means the answers expected by the majority of candidates & agreed at a standardisation meeting of examiners.

/               this means that any one part of an answer will meet the criterion for a question

;               a semicolon separates parts of an answer

AVP       This standards for Alternative Valid Point which allows for an examiner to ask if the point can be awarded a mark

eq            this stands for equivalent wording

e.g. 2 of:                 2 answers from choice of

(  )           bracketed words are not necessary for the mark to be awarded

 

 

There are similarities and differences between hormonal and nervous coordination in the body.

(a) Complete the table below to compare the differences between the two systems.

Feature of System Hormonal
Nervous
Method of transmission  Electrical / (along neurones / equivilent wording) / as along potential  Chemical /  in the blood
Speed of transmission  Fast Slow
Duration of response  Short Long

 

[ 3 ]

(b) State ONE similarity between the nervous & hormonal systems.

hormones and neurotransmitters are both chemicals or ( ref to) use of receptors  

[ 1 ]

 

[ Total: 4 marks ]

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