stussyamanda stussyamanda
  • 02-11-2017
  • Biology
contestada

which were the earliest oxygen-producing life-forms?
a.cyanobacteria.
b.seaweed.
c.dinosaurs.
d.ferns.

Respuesta :

themask101 themask101
  • 02-11-2017
A is the correct answer

Answer Link
Аноним Аноним
  • 23-01-2019

A. CYANOBACTERIA is the CORRECT answer!

Answer Link

Otras preguntas

In the Southern subregion of sub-Saharan Africa, which country is mainly covered by the Kalahari Desert?
A criticism of the American system of federalism is that it is
People flocked to California to fulfill the _________.
how many times is 5 bigger than 0.5?
Explain why an addition problem that has a 4-digit addends could have a 5 digit sum.
what is the equivalent to 7.4 kilograms
1. A scientific hypothesis can become a theory if ______. A) the entire community accepts it B) the hypothesis is tested extensively and competing hypothesis ar
what is the historical circumstance for the third amendment?
Why would a freedman agree to become a sharecropper?
Given that cos (x) = 1/3, find sin (90 - x)