In one exploration of language, Koko, the gorilla, was taught to use ____ to communicate.
a. lexigrams
b. hand signs
c. a keyboard
d. spoken English
Question 2
One reason that researchers may study language in nonhuman animals is that ____.
a. nonhuman animals show the same language acquisition as humans
b. nonhuman animals can serve as full-time research subjects
c. nonhuman animals have the exact brain structures as humans
d. the ethical standards for working with animals are more stringent
