Area codes are for phone numbers. Area codes are the first 3 digits of the phone number. Usually represent the area ppl live in. Example: (213) 555-6666 --> area code 213. Zip codes are for mailing addresses.
Ecological succession is the observed process of change in the species structure of an ecological community over time. Within any community some species may become less abundant over some time interval, or they may even vanish from the ecosystem altogether.
There are different stages of succession and they each occur in different phases. Primary succession occurs when life begin to develop in an area that did not have any org â¦ anisms existing before and it forms an community. What usually causes succession to occur? In terms of ecology, succession references how species structures change in an ecological community over time.