Ib biology glossary

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Across
  1. 3. a group of organisms that can interbreed and produce fertile offspring.
  2. 7. the alleles of an organism
  3. 9. A group of two or more atoms held together by covalent bonds.
  4. 10. an organism that synthesizes its organic molecules from simple inorganic substance
  5. 12. the whole of the genetic information of an organism
  6. 13. A single cell that carries out all the functions of life
  7. 14. The building up of complex molecules from smaller ones
  8. 15. unspecialized cells that can give rise to a wide range of body cells by differentiating along different pathways.
  9. 16. a group of populations living and interacting with each other in an area
  10. 17. The particular position on homologous chromosomes of a gene
  11. 19. process where plants make carbohydrate using sunlight, energy, CO2, water and chlorophyll.
  12. 20. chemical reactions within the organisms
Down
  1. 1. a group of organisms of the same species who live in the same are at the same time
  2. 2. The breaking down of complex molecules in the biochemistry of cells.
  3. 4. Production of offspring, either sexually or asexually
  4. 5. A single particle of an element, consisting of a positively charged nucleus surrounded by a cloud of negatively charged electrons.
  5. 6. a heritable factor that controls a specific characteristic
  6. 8. an organism that obtains organic molecules from other organisms
  7. 11. the characteristics of an organism
  8. 18. a type of cell division to produce two genetically identical cells.