Friday night is dinner night out for sally and harry. when they go to a chinese restaurant, they use chopsticks to eat their noodles. when they go to an italian restaurant they use a fork and a spoon to eat spaghetti. at home, they prefer eating all foods with their hands. although the topography differs, they are functionally equivalent because they all result in getting food in their mouth. these different ways of eating are all part of the same ­

1. topographical response class
2. discriminative stimulus
3. stimulus class
4. response class

These different ways of eating are all part of the same ­response class.

Explanation:

explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.