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 produce oxygen through photosynthesis. Photosynthesis is the process that plants use to produce their own food. During photosynthesis plants use the energy from the sun to convert carbon dioxide from the air into sugar molecules.