Cells are the basic building blocks of life, which can join together to form tissues, while different groups of tissues join together to form organs. These organs are then connected together to form organ systems, such as the digestive system, which includes the stomach, esophagus, intestines and other organs.
B as it's not government regulations, technology or funding
The system is called Taxonomy and was made by Swedish botanist Carlous Linnaeus
The process of active transport requires the most direct use of ATP.
I hope this helps.
Most likely a hydrogen bond?
