
You can grow micro-organisms in a
__(1)__ containing a gelatinous layer of
__(2)__ mixed with
__(3)__ to feed on. The
__(4)__ are spread across the gel using a
__(5)__ wire loop.
Choose from: agar, bacteria, nutrients, petri dish, sterilised
Which word(s) is/are missing from
__(1)__? [8c-20]