Cerebellar stroke is a common cause of a vascular vestibular syndrome. Although vertigo ascribed to cerebellar stroke is usually associated with other neurological symptoms or signs, it may mimic acute peripheral vestibulopathy (APV), so called pseudo-APV.
Phytoplankton receive energy through photosynthesis. Photosynthesis is the process of making glucose using sunlight. Carbon dioxide, sunlight, and water combine, producing glucose sugars that the being can use for energy. Zooplankton however feed off phytoplankton and decaying matter. They are known as detrivores.
Phytoplankton absorb energy from the sun (photosynthesis) and nutrients from the water to produce their own food. An estimated 50 percent to 85 percent of Earthâs oxygen is produced by this type of plankton photosynthesis with the remaining percent produced by land plant photosynthesis.