The Grand Canyon is made of sedimentary rock that contains fossils up to 1 billion years old. The most commonly found fossils in
the Grand Canyon are sea organisms (crinoids, brachiopods, and sponges). However, several upper layers of rock contain terrestrial, or land-based, fossils, such as dragonfly wing impressions and the footprints of scorpions, centipedes, and reptiles. What do these fossils tell us about the evolution of the geosphere at the Grand Canyon?
The Grand Canyon is made of sedimentary rock that contains fossils up to 1 billion years old. and the several upper layers of rock contain terrestrial, or land-based, fossils, such as dragonfly wing impressions and the footprints of scorpions, centipedes, and reptiles
Hoy en día, podemos incorporar nuevos genes de una especie en una especie completamente no relacionada a través de la ingeniería genética, optimizando el rendimiento agrícola.
