Biology Crossword Puzzle

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Across
  1. 3. The structure that keep the trachea from collapsing on itself is called
  2. 5. The enzyme used to connect human DNA to the plasmids of bacteria is called.
  3. 10. The process of humans selecting individuals with desirable features is called.
  4. 13. The exchange of substances between the blood of the embryo and the mother happens
  5. 14. the …
  6. 17. The hormone produced by plants that promotes cell enlargement
  7. 18. When the water containing too much nitrates or phosphates causing algae growth and
  8. 19. Anabolic steroid is the synthetic derivative of the hormone.
  9. 22. The machine used by patients to regulate the blood composition if both kidneys failed is
  10. 23. tube The other name of the oviduct is.
  11. 24. The process when sugar is not completely oxidized into carbon dioxide and water is
  12. 25. When neither allele is more dominant than the other is said to be.
  13. 26. The general name for fuels obtained by fermentation is called.
Down
  1. 1. The muscle that contracts causing the lens to be thin.
  2. 2. The cause of bacteria becoming resistant to an antibiotic is.
  3. 4. The phase when a population doubles each generation producing a logarithmic growth
  4. 6. The substance nicotine and carbon monoxide come from the activity called.
  5. 7. is called.
  6. 8. The name of the process for releasing essential materials from dead organisms is called.
  7. 9. The process of absorbing back substances needed by the body like glucose is called.
  8. 11. The compound generated by the mitochondria that is used as the source of energy is called
  9. 12. The process of nuclear division giving rise to genetically identical cells is called.
  10. 15. One of the way to sustain forest and fish stock is by the local community so they
  11. 16. death of aquatic animals is called.
  12. 20. The volume that cannot be expelled no matter how hard you breathe out is called
  13. 21. about conservation.