Branches of science living and extinct. The term is derived from Ancient Greek ζῷον (zōon, "animal") + λόγος (logos, "knowledge"). Some branches of zoology include: anthrozoology, arachnology, archaeozoology, cetology, embryology, entomology, helminthology, herpetology, histology, ichthyology, malacology, mammalogy, morphology, nematology, ornithology, palaeozoology, pathology, primatology, protozoology, taxonomy, and zoogeography. Human biology is an interdisciplinary academic field of biology, biological anthropology, nutrition and medicine which focuses on humans; it is closely related to primate biology, and a number of other fields. Some branches of biology include: microbiology, anatomy, neurology and neuroscience, immunology, genetics, physiology, pathology, biophysics, biolinguistics, and ophthalmology. Botany, plant science, or plant biology is
Earthly Branches Earthly Branches, which is somewhat similar to the modern-day practice of English-speaking pilots using "o'clock" for directions. Since 12 points were not enough for sailing, 12 midpoints were added. Instead of combining two adjacent direction names, they assigned new names: The 24 directions are: Advanced mariners such as Zheng He used 48-point compasses. An additional midpoint was called by a combination of its two closest basic directions, such as ("bǐngwǔ") for the direction of 172.5°, the midpoint between ("bǐng"), 165°, and ("wǔ"), 180°. Earthly Branches The twelve Earthly Branches or Terrestrial Branches are an ordering system used throughout East Asia