It is true but commonly called Richter meter
Both plant and animal cells have a mitochondria! Plant cells have a cell wall, a cell membrane and a chloroplast. Animal cells have a lysosome, where as plant cells usually don't have this present.
A common human, they go from an embryo then develop into an infant then grow to a teen. once a teen they might go through changes...
a plant is also evidence, they develope from a seed to a small bud and grow to a small plant.