69p

 

* Over 200 Questions and Facts

* Created by GCSE Teachers

* Only contains questions for Edexcel B1b

 

 

Designed for:

Edexcel Science, Foundation and Higher

Edexcel Biology, Foundation and Higher

 

Covers:

Electrical and Chemical Signals and Use, Misuse & Abuse

 
     
 

See also:

 

B1a