Energy and matter characterize both physical and biological systems. These systems are defined both by the types of energy and matter they contain and by how that matter and energy move through and between systems. ... This means that energy and matter can change forms but cannot be created or destroyed.
A part of the cell that controls the biochemical processes of respiration and energy production occur.
The answer would be C valleys formed by a glaciers.
There are four major classes of biological macromolecules:
carbohydrates.
lipids.
proteins.
nucleic acids.
