Giraffe Characteristics. The giraffe is the tallest living animal which is instantly recognizable by its exceptionally long neck. Adult males stand 15 â 19 feet (4.6 â 6.0 metres) tall, whereas females are shorter at 13 â 16 feet (4 â 4.8 metres) tall.
Bacterioplankton are bacteria and archaea, which play an important role in remineralising organic material down the water column (note that many phytoplankton are also bacterioplankton). Plankton are found throughout the oceans, seas and lakes of Earth.
Plankton consisting of plants and plant-like organisms, such as algae. Phytoplankton are a major source of food for aquatic animals and fix large amounts of carbon, which would otherwise be released as carbon dioxide.hyÂ·toÂ·plankÂ·ton. n. Plankton that consists of minute plants and other photosynthetic organisms, including cyanobacteria, diatoms, and dinoflagellates. phyâ²toÂ·plankÂ·tonâ²ic (-plÄngk-tÅnâ²Ä­k) adj.