Livcannon Livcannon

01-02-2017
Biology

contestada

Cyanobacteria which first appeared on earth over 3 billion years ago are

Respuesta :

kev2002 kev2002

02-02-2017

Cyanobacteria also known as one of the first organism on earth are responsible for producing nearly 80% of the oxygen on earth.

Answer Link

Otras preguntas

¿Dónde irás este fin de semana? ¿Qué harás? Haha my friend said this to me and idk what it means...

7. A company manufactures shaving sets for $5 each and sells them for $7 each. How many shaving sets must be sold for the company to recover an initial investem

Psychologist Michael Cunningham conducted a survey of university women to see whether, upon graduation, they would prefer to marry a high school teacher who has

Find the values of a and b such that x^ + 2x - 7 = (x + a)^ + bI know a= 1

1/3x+4=10 what is x?

9p + 8 Math fraction

Read and choose the correct option to complete the sentence.Fabiola regresó ________ del crucero después de la excursión.al mapaal viajea la cabinaa la ruta

formular for calculating resistors in parallel

Kiona Co. set up a petty cash fund for payments of small amounts. The following transactions involving the petty cash fund occurred in May (the last month of th

Any one help thx I'm just stuck on this