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Evolution and Natural Selection Crossword Puzzle for Middle School is a hard crossword puzzle with 9 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Evolution and Natural Selection Crossword Puzzle for Middle School
Challenge your understanding of advanced evolution and natural selection terms in this hard-level crossword, perfect for grades 6-8 aspiring biologists.
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Across
  • 1. All the genes in a population at a given time
  • 3. Trait enhancing an organism's survival in its environment
  • 4. Measure of reproductive success in natural selection
  • 5. Passing of traits from ancestors to offspring
  • 9. Heritable characteristics of an organism
Down
  • 2. One of two or more alternative forms of a gene
  • 6. Process by which new species arise from existing ones
  • 7. Mechanism that favors certain traits over others
  • 8. Random change in DNA sequence that can introduce variation
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