The 'ologies' of science

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Across
  1. 3. Study of insects
  2. 5. Study of incidence, distribution, and possible control of epidemics and other diseases
  3. 6. Study of living things and everything about it
  4. 7. Study of Volcanoes and volcano-related phenomena
  5. 10. A person who studies the different climates
  6. 11. The study of all types of animals and everything about them
  7. 12. Study of plants and everything about them
  8. 14. The study of organisms and how they interact with the environment, such as habitats and food webs
  9. 15. Study of hormones and their composition and functions
Down
  1. 1. The study of bacteria, especially in relation to medicine and agriculture
  2. 2. Study of cell biology including cell anatomy and physiology
  3. 4. Study of development of living things before birth
  4. 8. Study of ticks, mites and spiders
  5. 9. Structure and function of living things, such as cells, tissues, Organs, and organ systems
  6. 13. The study of the moon, stars, and other objects in space