Natural Selection

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Across
  1. 2. a random change to a gene that sometimes results in a new trait
  2. 4. histogram: a graph that uses bars to show how characteristics or values are distributed within a group
  3. 5. a type of molecule that genes and chromosomes are made of
  4. 7. version: a specific form of a gene that provides instructions for making a particular protein
  5. 9. the number of individuals with each trait in a population
  6. 10. trait: a trait that makes it more likely that an individual will survive in a specific environment
Down
  1. 1. trait: a trait that makes it less likely that an individual will survive in a specific
  2. 3. a group of individuals born and living at about the same time
  3. 6. a characteristic that all members of a species have
  4. 8. everything (living and nonliving) that surrounds an organism