scientist
doctor
physicist
researcher
experimenter
experiment
A tour guide or tour operator is another name for someone who conducts tours.
Probability is the study of events whose outcome is not certain. If the experiment or trial is not random, and the experimenter conducts it in such a way that a certain outcome is obtained, then there is no probability involved: the question is deterministic.
The pharynx conducts air from the nasopharynx to the laryngopharynx.
A person or animal upon which a scientific experiment is taking place.
This selling method is called an "auction". The person calling out or announcing the prices (or bids) is called an "auctioneer".
A person who conducts experiments is called a scientist or researcher. They design and perform experiments to test hypotheses and gather data to answer specific research questions.
Crash
temputure
A person who conducts sales by bidding is called an AUCTIONEER.
A person that conducts an interview.
physiologist
The amount of light is the variable in this experiment. The scientist would manipulate the light levels to observe how it affects earthworm activity.
experiment
Auctioneer
A tour guide or tour operator is another name for someone who conducts tours.
Gallup conducts a lot of political polls.