Answer:
Cell
Explanation:
A cell is the smallest unit of a living thing.
1. DNA replication
2.Mitochondria transform chemical energy into electromagnetic energy.
3. It is constructed by connecting smaller monomer subunits.
The main food sources of the birds( the plentiful recourses within the environment occupied by the species)
Energy is released from ATP when a <span>phosphate group is removed from ATP yielding ADP+p+energy.</span>