Unit B Crossword

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Across
  1. 7. the highest rank of organisms, higher than a kingdom.
  2. 9. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
  3. 10. performing a similar function but having a different evolutionary origin, such as the wings of insects and birds.
  4. 12. a distinguishing quality
  5. 14. a plant or animal native and restricted to a certain place.
  6. 15. Species, in biology, classification comprising related organisms that share common characteristics and are capable of interbreeding.
  7. 16. is a rank in the biological classification (or taxonomy). It stands above species, and below families.
  8. 17. is the physiological maximum potential reproductive output of an individual (usually female) over its lifetime
  9. 19. branched or stepped process that can be used to identify organisms
  10. 21. is a taxonomic rank that is composed of smaller groups called phyla
  11. 22. the branch of biology and medicine concerned with the study of embryos and their development.
Down
  1. 1. the branch of biology that deals with the geographical distribution of plants and animals.
  2. 2. similar in position, structure, and evolutionary origin but not necessarily in function.
  3. 3. the branch of science concerned with fossil animals and plants.
  4. 4. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
  5. 5. a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
  6. 6. having become functionless in the course of evolution.
  7. 8. It is a process in which a less stable nuclei spontaneously breakdown or decomposes into a stable nuclei.
  8. 11. the process by which organic matter exposed to minerals over a long period is turned into a stony substance.
  9. 13. calculates an age in years for geologic materials by measuring the presence of a short-life radioactive element,
  10. 18. is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world.
  11. 20. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.