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.
Bacillus. A genus of aerobic or facultatively anaerobic, spore-forming, ordinarily motile bacteria (family Bacillaceae) containing gram-positive rods. Motile cells are peritrichous; spores are thick walled and take Gram stain poorly; these organisms are chemoheterotrophic and are found primarily in soil. genus of aerobic or facultatively anaerobic, spore-forming, ordinarily motile bacteria; these organisms are chemoheterotrophic and are found primarily in soil. A few species are animal pathogens; some species evoke antibody production. [L. dim. of baculus, rod, staff].