Investigating microbial cultures (AQA GCSE Biology): Quizzes

Clear areas where bacteria cannot grow

It is more effective at stopping bacteria

$25°C$

Higher temperatures could grow harmful bacteria

Pass ends through a Bunsen burner flame

Stops harmful bacteria getting out

Into three equal segments

Two measurements at $90°$ to each other

$10mm$

$\pi r^2$

$201mm^2$

The one with area $491mm^2$