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

tentukan himpunan penyelesaian dari persamaan linear berikut . a. 3m + 11 = -28b. 25 - 4p = 6p + 15c. 6/y + 2 = 4

Which statement is NOT true about polymers? A.Polymers are complex molecules composed of random sequences of atoms. B.Polymers are large molecules composed of

Show the tens fact you used. Write the difference. 16-9= 10-___=_____

The indian ocean maritime system forged economic and social ties between a. morocco, arabia, and the mediterranean sea b. russia, india, and china c. east af

-4 (2x - 5) 1. -8x + 20 2. -8x +9 3. -8x - 5 4. -8x - 20

is there a difference between a homogenouos mixture of hydrogen gas and oxygen gas, and a sample of vapor? explain?

Which letter is borrowed from the English alphabet in Spanish? A) Aa B) Ww C) Hh D) Zz

a rectangle has a lenghth of 2x+7 and a width of 3x+8y. Write and simplify an expression for the perimeter of that rectangle.

sharon earns a commission at tabletop stereo of 12% for all monthly sales over $40,000. Last month she sold $43,700 of stereo equipment,

what is the electoral college?