Final answer:
Great apes have a basic ability to produce human speech, but it is limited compared to human language.
Step-by-step explanation:
Language studies have shown that while great apes have some basic capacity to produce human speech, it is limited and differs from the complexity of human language.
Human-reared chimps, gorillas, bonobos, and orangutans have been taught to use gestures or tokens to refer to things in their environment. However, these symbolic systems are limited and do not possess the open-ended quality of human language.
While it is unclear if apes acquire these abilities innately or through training, it is evident that they do possess some biological features that enable them to learn human language in a partial and limited way.