Pavlov presented a sound followed by meat in his experiments. Gradually the sound came to elicit salivation. The sound in this experiment would be considered the ____

The average North American newborn measures

14 inches (36 cm). 16 inches (41 cm). 20 inches (51 cm). 24 inches (60 cm).

The closest vocalizations observed among animals that mirror human language are the different _____ of the vervet monkey

Fill in the blank with correct word