Bio-diversity in the living world

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Across
  1. 4. Pro- (before) + karyon (nut, kernel) From Greek "pro," meaning before, and "karyon," meaning nut or kernel, referring to cells without a nucleus.
  2. 6. Non- (not) + chorda (cord) Chorda from Latin, meaning cord, referring to the notochord. Non-chordates lack this feature.
  3. 7. Classis (group) From Latin "classis," meaning a group or division.
  4. 10. Gymnos (naked) + sperma (seed) From Greek "gymnos," meaning naked, and "sperma," meaning seed, indicating uncovered seeds.
  5. 15. Ordo (order) From Latin "ordo," meaning order or arrangement.
  6. 16. Taxis (arrangement) + nomos (law) Taxis is Greek for arrangement. "Nomos" is Greek for law, implying the system of classification.
  7. 18. Systema (system) From Greek "systema," meaning an organized whole. It refers to the study of the diversity and relationships of organisms.
  8. 21. Taxis (arrangement) + nomos (law) + hierarchia (sacred order) Hierarchia is from Greek, meaning a ranked order.
  9. 24. Cyningdom (realm of a king) From Old English "cyningdom," meaning realm or domain of a king, indicating the highest classification.
  10. 25. Virus (poison) From Latin "virus," meaning poison or venom.
Down
  1. 1. Familia (household) From Latin "familia," meaning household, indicating a group of related genera.
  2. 2. Bio- (life) + diversity Bio comes from Greek "bios," meaning life. "Diversity" comes from Latin "diversitas," meaning variety.
  3. 3. Bryon (moss) + phyton (plant) From Greek "bryon," meaning moss, and "phyton," meaning plant.
  4. 5. Bi- (two) + nominalis (relating to a name) Binomial means two names, and "nomenclature" comes from Latin "nomenclatura," meaning calling by name.
  5. 8. Alga (seaweed) From Latin "alga," meaning seaweed.
  6. 9. Fungus (mushroom) From Latin "fungus," meaning mushroom or toadstool.
  7. 10. Genus (birth, race) From Latin "genus," meaning birth, race, or kind.
  8. 11. Pteris (fern) + phyton (plant) From Greek "pteris," meaning fern, and "phyton," meaning plant.
  9. 12. Species (appearance) From Latin "species," meaning appearance or kind.
  10. 13. Protos (first) From Greek "protos," meaning first, indicating the earliest or most primitive eukaryotes.
  11. 14. Eu- (true) + karyon (nut, kernel) From Greek "eu," meaning true, and "karyon," meaning nut or kernel, referring to cells with a nucleus.
  12. 17. Moneres (single) From Greek "moneres," meaning single or solitary, referring to unicellular organisms.
  13. 19. Virus (poison) + -oid (like) Oid from Greek "eidos," meaning form or shape, indicating virus-like.
  14. 20. Phylon (race) From Greek "phylon," meaning race or tribe.
  15. 22. Chorda (cord) From Latin "chorda," meaning cord, referring to the notochord, a defining characteristic.
  16. 23. Leichen (lichen) From Greek "leichen," meaning tree moss or lichen.