Question

consider this claim:
animals should be used for research because animal research saves human lives.
which is the strongest evidence to support the claim?
animal rights groups that are supported by millions of americans have stated that animal lives are no less valuable and meaningful than human lives.

bacterial infections were once a major cause of death, but animal experiments led to the development of penicillin, which radically changed our ability to treat these infections and prevent death.

animals are used in research related to genetics, diagnosis, and development of new medicines and other products.

Explanation:

To support the claim that animal research saves human lives, we need evidence showing a direct link between animal research and saving lives. The first option argues against animal research (values of animal lives), so it's not supportive. The second option gives a specific example: animal experiments led to penicillin, which reduced deaths from bacterial infections—this directly shows how animal research saved lives. The third option only states animals are used in research areas but doesn't show it saves lives. So the second option is the strongest evidence.

Answer:

Bacterial infections were once a major cause of death, but animal experiments led to the development of penicillin, which radically changed our ability to treat these infections and prevent death.