Biology Vocabulary Terms

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Across
  1. 2. Isolation Can impact natural selection this occurs when a group of the same species becomes separated by a physical barrier such as mountain range, river, or man made structure
  2. 6. Any self regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival
  3. 8. Is a molecule similar to DNA but usually single stranded
  4. 9. A molecule produced by a living organism and essential to one or more typically biological processes
  5. 12. The activity, role, value or purpose of a part, activity, or trait of an organism
  6. 13. Are specific sequences of DNA that code for proteins
  7. 15. A single molecule that is often linked together to form a larger molecule known as a polymer
  8. 17. Something of many parts that is put together
  9. 18. Cycle Is essential for building bones, teeth, and DNA
  10. 19. The presence of two complete sets of chromosomes in an organism's cells, with each parent contributing a chromosome to each pair
  11. 21. The process by which a cell replicates its chromosomes and then segregates them, producing two identical nuclei in preparation for cell division
  12. 22. This is an alternative form of a gene
  13. 23. Cycle Is another crucial cycle that involves the movement of nitrogen between the atmosphere, soil, and living organisms
  14. 25. Selection Is a fundamental concept in biology that explains how species change and adapt over time
  15. 27. Dogma Describes the flow of genetic information within a biological system
  16. 28. The unfolding or breaking up of a protein, modifying its standard 3-dimensional structure
Down
  1. 1. Is the chemical reaction that allows plants to make their own food
  2. 3. Respiration A cellular process where energy is produced by breaking down glucose without the presence of oxygen
  3. 4. An organism that can produce its own food by converting inorganic materials like carbon dioxide and water into organic compounds using energy from sunlight
  4. 5. An organism that cannot produce its own food and must obtain nutrients by consuming other organisms
  5. 7. Cycle Involves the movement of carbon between the atmosphere, living organisms, and the Earths crust
  6. 10. A substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one
  7. 11. This type of allele is only expressed if there are two recessive alleles present
  8. 14. Respiration A chemical process that uses oxygen to break down glucose and produce energy
  9. 16. Bond Are weak attractions between the nitrogenous bases of the DNA strands
  10. 17. Conservative The replication process meaning each new DNA molecule consists of one original strand and one newly synthesized strand
  11. 18. Large molecules made by bonding a series of building blocks
  12. 20. Is the molecule that carries the genetic blueprint of living organisms
  13. 24. This type of allele is always expressed if it is present
  14. 26. Reproduction A mode of reproduction in which only one parent is involved to reproduce offspring