stussyamanda stussyamanda

02-11-2017
Biology

contestada

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

Respuesta :

Аноним Аноним

02-11-2017

A. cyanobacteria is the answer!

Answer Link

allyssaquigley allyssaquigley

02-11-2017

A is the answer Cyanobacteria I hope this helps

Answer Link

Otras preguntas

-8 - (-2+7) to the second power

1. List some things that happen to your body when you are really cold or really hot. 2. From your list, think of 3 body systems that work to regulate your body

sales of 10 000 increase by 65 each year

Enter the area of the triangle in square meters.Round your answer to the nearest hundredth.

an essay on a narrow escape

Minu read 2/3 of a book on first day 1 /5 on the second day and rest on third day what fraction of the book she read on 3rd day.

There were 25 questions on the math test. Brianna got 23 questions correct. What percentage did she get correct on the test?

List 4 forms of energy

Which of the following is a distraction that you find when photographing animals at the zoo? Fences Enclosure glass Other people All of the above

Why was California such a popular final destination for people fleeing the Dust Bowl?