Answer:
The correct answer is- make a prediction
Explanation:
A hypothesis can be defined as an explanation of any observation which can be confirmed by experiments and prediction is the guess about the future result of any observation.
As here a biologist hypothesized that the sound produced by frog is mating calls than the next step of the biologist would be to make a prediction about response of that mating call by female frogs. This is called hypothesis prediction method.
Therefore the right answer is- biologist will make a prediction.
Chemical potential energy. Potential energy being converted into kinetic energy. A lump of coal and a can of gasoline
Throwing alcohol in its eyes<span />
Maximum 3 days. After that the body is collapsing