Biology

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Across
  1. 3. vascular tissue that carries water upward from the roots to every part of a plant
  2. 8. the production of offspring
  3. 9. a natural resource that can be replaced
  4. 12. preserved remains or evidence of an ancient organism
  5. 14. an organism that eats secondary consumers. Also called third level consumers.
  6. 17. the disappearance of a species when the last of its members dies
  7. 18. process by which a DNA template is used to produce a single-stranded RNA molecule (occurs in the nucleus)
  8. 19. a fertilized egg
  9. 20. when one allele is not completely dominant over the other allele (red flower crossed white flower to produce PINK flower)
  10. 22. reproductive cells, have only half the number of chromosomes as body cells
  11. 24. warming that results when solar radiation is trapped by the atmosphere
  12. 25. an allele that is masked (in the phenotype) when a dominant allele is present
  13. 26. the continuous process by which water moves from Earth's surface to the atmosphere and back
  14. 28. the final stage of mitosis or meiosis, during which a nuclear membrane forms around each set of new chromosomes
Down
  1. 1. a chain of amino acids
  2. 2. movement of alleles into or out of a population due to the migration of individuals to or from the population
  3. 4. organism that obtains food by consuming other living things; also called a consumer
  4. 5. member of a population of genetically identical cells produced from a single cell
  5. 6. a resource that cannot be reused or replaced easily (ex. gems, iron, copper, fossil fuels)
  6. 7. process in which mRNA attaches to the ribosome and a protein is assembled
  7. 10. three-nucleotide sequence on messenger RNA that codes for a single amino acid
  8. 11. telease of harmful materials into the environment
  9. 13. the ripened reproductive body of a seed plant. a matured seed
  10. 15. series of events that cells go through as they grow and divide
  11. 16. in gymnosperms, a seed-bearing structure
  12. 21. evidence; information gathered from observations
  13. 23. random change in allele frequency caused by a series of chance occurrences that cause an allele to become more or less common in a population
  14. 27. an organism or cell having two sets of chromosomes or twice the haploid number; 2n