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 thuringiensis, often abbreviated as Bt, is a naturally-occurring bacteria that makes pests sick when they eat it. There are two strains commonly used as natural pesticides. Bacillus thuringiensis kurstaki (Btk) gives excellent control of leaf-eating caterpillars such as cabbage worms and tomato hornworms, but has no activity against insects that do not eat treated leaves. After the insects eat the bacteria, their guts rupture and they die.