B1 0.0 / 5 ? BiologyBiologyGCSEAQA Created by: Parthunax26Created on: 09-05-17 10:19 31065472189 Across 1. The part of the nervous system that is made up of the brain and spinal cord. (3) 4. The organism at the bottom of a food chain is called the.... (8) 5. Which cell organelle is responsible for respiration? (12) 8. Which type of respiration produces lactic acid? (9) 9. A variation of a gene is called an.... (6) Down 2. A characterisitc which requires two of the same allele to be present is a .....characteristic. (9) 3. Which part of a cell holds the genetic information to create another cell? (7) 6. Respiration that requires oxygen is called.........respiration. (7) 7. Chromosomes are made up of..... (3) 10. Having two of the same allele is called being... (10)
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