Respuestas
Respuesta:
Explicación:
Pregunta 1⇒The idea that the early Earth was enveloped by a thick atmospheric layer has been proven wrong
Pregunta 2⇒Experimental research into the origin of life began in the 1950s, with the work of two pioneering scientists in a discipline called prebiotic chemistry: Stanley L. Miller and Joan Oró.
Pregunta 3⇒Earth may not have been the only planet to form 150 million
Pregunta 4⇒ Carbon dioxide to form carbonates which, when precipitated, lead to the formation of stromatolites.
Pregunta 5⇒The Cambrian explosion or evolutionary radiation of the Cambrian was the sudden appearance (from a geological point of view) and rapid diversification of complex multicellular macroscopic organisms in the early Cambrian period, 542/530 million years ago (Ma).
Pregunta 6⇒
Pikaia is an extinct genus considered a cephalochord, a weight of the difficulty involved