Who has ultimate responsibility for an investigational product at the study site?

Explanation:

The person responsible for making the initial risk determination for a device being used in a study is the sponsor-investigator. The sponsor-investigator is an individual that initiate and conduct investigation. The sponsor investigator also takes up the responsibility as the study's sponsor

An investigational product may be an unlicensed product or a licensed product when used or assembled (formulated or packaged) differently from the approved form, when used for an unapproved indication, or when used to gain further information about an approved use.

jupiter is mainly composed of hydrogen and helium just like a star. spectral analysis of jupiter has revealed that in addition to hydrogen and helium, the planet is made of water, methane and ammonia. those elements are in trace amounts. the core of the planet is thought to contain some rock and metallic hydrogen. i hope this will give you the answer to your question! : d

answer; self-serving bias;