Emigration has occurred in an ecosystem when individual
a. move into the ecosystem
b. are born healthy
c. die of disease
d. leave the ecosystem

The answer is D, leave the ecosystem.

I hope this helps. :)

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: