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IGCSE Questions and Answers (Q&A)

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

1 Answer

John Adney
Answered: Sep 24, 2017

Please explain the nephron system to me, i don't understand it that much

1 Answer

John Adney
Answered: May 15, 2017
Selective breeding is the cause of that. Particularly, peacocks with large tails are forced to mate together to produce offspring with large tails. from the offrspring the ones with the largest tail...Read More

1 Answer

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

1 Answer

John Adney
Answered: Apr 09, 2017
Greenhouse gasses trap the longwave radiation in the air as the waves bounce off the "air wall" and get reflected back to earth. They do not absorb the waves. Hence the answer would be false.

1 Answer

John Adney
Answered: Feb 05, 2017
Why is the fourth option repeating?

1 Answer

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