Question

multiple choice 1 point
nonhuman animals have:
○ not shown any expressions of joy.
○ been proven to consciously experience the emotion of fear.
○ been shown to experience all of the same emotions that humans do.
○ shown behavioral responses to pleasant and unpleasant tastes.

Explanation:

• Option 1: Nonhuman animals (like dogs wagging tails in joy - related contexts) do show joy expressions, so this is incorrect.
• Option 2: Conscious experience of fear in nonhuman animals is not conclusively proven (due to challenges in measuring consciousness), so this is incorrect.
• Option 3: Nonhuman animals don't experience all human - like emotions (e.g., complex social emotions unique to human cultural contexts), so this is incorrect.
• Option 4: Research shows nonhuman animals (e.g., rodents, primates) have behavioral responses (like preference/aversion) to pleasant (e.g., sweet) and unpleasant (e.g., bitter) tastes, so this is correct.

Answer:

The option "shown behavioral responses to pleasant and unpleasant tastes" (the fourth option, considering the order from top: first "not shown any expressions of joy", second "been proven to consciously experience the emotion of fear", third "been shown to experience all of the same emotions that humans do", fourth "shown behavioral responses to pleasant and unpleasant tastes").