How do plankton participate in the oxygen cycle

Plankton participate in the oxygen cycle by producing around half of the world's oxygen through the process of photosynthesis.

the peripheral nervous system or pns contains the nerves, which leave the brain and the spinal cord and travel to certain areas of the body. the peripheral nervous system's main job is to send information gathered by the body's sensory receptors to the cns as quickly as possible.

i would have a lunch. it's one big package of food, making it one food. : p