Vascular plants exhibit alternation of generation. what is alternation of generation?

a) the plant exhibits reduced sporophyte and dominant gametophyte alternately.

b) plant cells undergo mitosis and meiosis alternately.

c) the plant exists as a diploid organism, and at other times as a haploid.

A) Yes. As the population grows, available food and space could become limited.

Explanation:

If the population of a certain species expands over time then a previously stable ecosystem will not remain stable. Space would become limited as there will be more organisms and lesser space to accommodate them. Competition for food will also begin as food will also become short. Intraspecific as well as inter-specific both competitions would start to occur among organisms for the resources. As a result, the ecosystem will become unstable.