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Crucigrama Sopa de Letras Hoja de Trabajo
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Evolution

Horizontales
Whale pelvis and human appendix
Competition for food, shelter and mates.
Animals living in similar ecosystem evolved with similar structures
Humans choose which animals they want to breed
Variations among Species
Verticales
Organisms with the best adaptations survive and reproduce
Similar body structures but different uses
Structure of Behavior that helps animal to survice
Embryos of animal that look alike in early development of fetus
Remains of ancient organisms