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IGCSE Questions and Answers (Q&A)

John Smith
Answered: Feb 06, 2023
1) Stimulus detected 2) by pain receptors in the skin 3) Impulses are sent along sensory neurones 4) Across a synapse 5) to the relay neurone 6) to the arm muscle 7) arm muscle contracts 8) and...Read More

1 Answer

522 views
Nataliemoyo
Answered: Nov 04, 2019

How is it 1.92 when there are 4 half lives in 20hours therefore there was 7.68mg before the 20hours started

2 Answers

375 views
Risinu
Answered: Feb 05, 2017
Isolate plasmids from bacteria the select the part of DNA that codes for the production of insuline. then using a restriction enzyme cut open thhe plasmid using same restriction enzyme cut part of...Read More

2 Answers

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