Artificial ecosystems are man-made environments that mimic natural ecosystems. Two examples of artificial ecosystems are:
1. Aquariums: These are controlled aquatic environments where aquatic organisms such as fish, plants, and corals are kept for research, ornamental purposes, or as pets.
2. Crop Fields: These ecosystems are created for the cultivation of crops. They are artificially maintained and manipulated by humans for food production.
Both of these ecosystems rely on human intervention for maintenance.
Final Answer:
Two examples of artificial ecosystems are Aquariums and Crop Fields.