(1) economists. (2) anthropologists. (3) philosophers.
Answer:
Physical barrier
Explanation:
A physical barrier is any barrier to communication that is caused by a natural and/or environmental condition and affects how the communication when sending a message to a receiver. In this case, the noise from the people talking behind Raul acts as a environmental condition and is affected the way in which information from the speaker gets to Raul.
Basically, figure out how the 'path' compares to life. Life can be easy (very level) and beautiful (very serene) but it can also be difficult and full of hardship (winding and full of undergrowth). Life can go in different directions and present one with many choices (fork into several directions) and life or things in life can help you realize where you want to go, and what you want to do (landmarks and signs). And lastly, life has an end (as paths do).
Answer: From Piaget's theory of cognitive development, The concept of Object Permanence.
Explanation:Object Permanence, for the baby means that he is starting to understand that things can disappear although they aren't gone forever.
Since Jonathan's mom left him he began to cry because he did not want her to leave although he knows she won't be gone forever.
