The correct answer is option A , sensory system.
A human body primarily consists of the following organ systems :
Circulatory, Respiratory, Digestive, Excretory, Nervous and Endocrine systems, Immune, Integumentary, Skeletal, Muscle and Reproductive systems.
There is no as such sensory system. However the neurology based system is called Nervous system which includes organs and their processing in the sensing of stimulation.
Produces a replication bubble with a replication fork on each side.
If the a decomposer were absent from the forest, everything would just pile up onto one another and never be returned to the Earth.
