Answer:
The words which complete both sentences are:
- a single light source
- the location of the light source
Explanation:
The complete sentence, thus, reads:
Pilobolus can be grown in a controlled room with a single light source
at a distinct location. After sporangia are discharged, their location could easily be determined relative to the location of the light source.
Pilobolus is a type of fungi that only grows on the dung of animals that only eat plant.
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