- Energy
"Matter is recycled, but energy is not. In an ecosystem, matter is represented by the presence of biogeochemical elements such as Hydrogen, Carbon, Nitrogen, Oxygen, Phosphorus and Sulfur."
There are two correct statements, they are:
1. The universe looks the same from all directions, but can change and evolve over time.
4. Scientists can study the universe because the cosmological principle suggests that any physical laws or processes are the same for the entire universe.
C. the fallen trees become food for organisms
Answer:
Cell theory
Explanation:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
