In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

[Q]: Sentence: Individuals do populations gain through births and immigration. Question: What do populations gain through births and immigration?
[A]: individuals


[Q]: Sentence: Particles of sand and rock are carried by longshore drift. Question: Particles of sand and what other substance are carried by longshore drift?
[A]: rock


[Q]: Sentence: The term ecological succession refers to the sequence of community and ecosystem changes after a disturbance. Question: What term refers to the sequence of community and ecosystem changes after a disturbance?
[A]:
ecological succession