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

Which genotype has a 50% chance of being inherited

Describe two ways in which the above law protects citizens against human trafficking

Read the excerpt from “Demon's Run.”There were a lot of fights that day and a lot of claims stolen from their rightful owners. But Margaret rode Demon to the la

somebody help me please?

What are the roots of the quadratic equation below? 3x2 + 9x - 2 = 0 -9 + 105 O A. x = 6 O B. X= -3+105 2 C. -91 57 6 OD. x==34,57

What is the energy stored in food?

What is the area of the figure shown?

BRAINPOP: According to the rule of law, a government leader:

19. How long will the people put up with the increasing economichardships?O tolerateOremain satisfied withowelcomeO take easily

7 1/5 - 6 2/5 = ? A 13 3/5 B 1 1/5 C 1 4/5 D 4/5