Answer:
Sealed bottle gardens are a perfect example. They contain soil, a few plants which were watered once. The plants were able to photosynthesise and respire, nutrients and water were continually recycled as the container was sealed.
Explanation:
A balanced ecosystem represents a sustainable habitat of interdependent animals, plants, and microorganisms and their environment. Balanced ecosystems display efficient energy and material cycling and interconnectedness between primary producers and predators.
What? Can you explain what you're saying better?
I think it is C because a theory is not always true..
carbon 14 and nitrogen 14 in the remains
Answer:
The cell is basically like a city because there are different parts of the cell that work together to keep a system running, therefore incredibly similar to a cell. There are parts to the cell such as the vacuole which acts as the storage for a cell, like the storeroom or bank in the city, and the lysosome which cleans up and recycles for the cell in away, acting as the recycle center or such for a city. Just like these few cell parts, there are many other parts which each have their respective "role" to functioning as a "city", and for those reasons a cell is like a city.
