3.grandfather clause...........................
It is currently a noun or pronoun that is in the footsteps of the preposition in a sentence
It's the problem or problems in the story.
Answer: abuse, a waste of time, animal endangerment, it affects the earth
Explanation: Animal experiments prolong the suffering of humans waiting for effective cures because the results mislead experimenters and squander precious money, time, and other resources that could be spent on human-relevant research. Animal experiments are so worthless that up to half of them are never even published
Answer:
b) : | I guess not quite Sure