By convention
Wind energy, that derives from solar energy.
Chlamydia derives energy from the ATP of the host cell.
No specific cell derives solely energy from ATP. All cells consume ATP by energy-requiring processes which are endothermic. ATP is the main source of energy for all cellular functions.
decomposers
It derives from the forces within the nucleus
The sun. In fact nearly all useable energy on Earth derives eventually from the Sun.
Cellular respiration
decomposers
From the food they consume.
they get their energy from fish
energy is tranferred from insects to fish in this system by?