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.
Definition: Plankton is the term that generally refers to the floaters, the organisms in the ocean that drift with the currents.This includes zooplankton ( animal plankton ), phytoplankton (plankton that are capable of photosynthesis), and bacteria.lankton is the term that generally refers to the floaters, the organisms in the ocean that drift with the currents.