Ellele Me
bacterium A
Covered with
bacterium B
Placedo
covered with
bacterium C
each pla
Clear zone
bacteria
Incubation at 37°C for 48 hours
Bacterial
growth
Result
[Adapted from 2004 HSC NSW: Section 1 - Part B Q27)
The plates were incubated at 37°C for 48 hours. The diagram of plates 1, 2 and 3
in the bottom row show the results of the investigation.
2.1 Formulate a hypothesis for this investigation.​

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.