Branches of science much as it involves a clearly biological aspect. While biology remains the centerpiece of life science, technological advances in molecular biology and biotechnology have led to a burgeoning of specializations and new, often interdisciplinary, fields. "Biology" is the branch of natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines. Zoology, occasionally spelled zoölogy, is the branch of science that relates to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both
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