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Crossword Puzzle
Crossword Puzzle

ERA PRECÁMBRICA

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ERA PRECÁMBRICA

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About this activity

Crucigrama para biología

Created by

Zoe Peñaranda
Zoe Peñaranda
Argentina

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ERA PRECÁMBRICA
 

Crossword Puzzle

ERA PRECÁMBRICAOnline version

Crucigrama para biología

by Zoe Peñaranda
1

Grandes masas de agua que se formaron cuando la Tierra comenzó a enfriarse y el vapor de agua se condensó.

2

Planeta que se formó hace aproximadamente 4600 millones de años.

3

Primeros organismos microscópicos, sin núcleo ni estructuras internas complejas.

4

Proceso mediante el cual algunas bacterias utilizaban la luz solar para obtener energía y liberaban oxígeno.

5

Gas que comenzó a acumularse en la atmósfera debido a la actividad de las cianobacterias.

6

Nombre dado a una de las primeras estructuras formadas por colonias de microorganismos.

7

Tipo de células que poseen núcleo y orgánulos especializados.

8

Proceso mediante el cual una célula incorporó una bacteria que terminó viviendo dentro de ella, dando origen a una relación simbiótica.

9

Bacterias fotosintéticas que tuvieron un papel fundamental en la producción de oxígeno.

10

Era que representa casi el 90% de la historia de la Tierra y durante la cual aparecieron las primeras formas de vida.

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