Tom regan’s view of animals is that: they are exactly the same as humans in every respect, and should be treated accordingly. they seem to have experiences and to care about their lives, which gives them a right not to merely be used. their value lies in the purpose they were created for, which is to serve as resources for humans. they have bodies but lack souls, and thus lack any dignity or value whatsoever.

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.

abu bakr, was a senior companion and—through his daughter aisha—a father-in-law of the islamic prophet muhammad. abu bakr became the first openly declared muslim outside muhammad's family. abu bakr served as a trusted advisor to muhammad.

answer; does not include a reference to the audience;

answer; through play and social interaction;