Biology questions - Lyndia 🎀

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Across
  1. 1. known as the extent to which a pathogen is able to cause disease or damage.
  2. 3. immunity is immunity resulting from the activities of an individual’s own immune system.
  3. 4. when neutrophils engulf the bacterium to form a vesicle.
  4. 7. epithelium consists of ciliated columnar cells and a few goblet cells.
  5. 8. muscle is tissue which is capable of contraction, but which is not under voluntary control.
  6. 11. are globular proteins also known as immunoglobulins.
  7. 13. it’s a flexible airway that is supported by pieces of Cartilage.
  8. 14. fibres are present throughout the gas exchange system and provide flexibility during ventilation.
Down
  1. 2. when T-helper cells secrete chemicals is called….
  2. 4. is a eukaryotic organism and has many genes which can code for a wide variety of surface antigens.
  3. 5. is caused by parasites of the protoctist genus plasmodium.
  4. 6. diseases are diseases caused by pathogens.
  5. 9. is a rigid, but flexible supporting material containing a high proportion of collagen fibres.
  6. 10. a roughly spherical enveloped virus, with RNA as its genetic material.
  7. 12. cells both T-helper cells and T-killer cells produce their own what…