hopeykuz11 hopeykuz11

02-12-2016
Biology

contestada

the oxygen produced by the first photosynthesis autotrophs

Respuesta :

heyitsjassie heyitsjassie

02-12-2016

I think it's cyanobacteria during the 3rd era. The cyanobacteria split water to get hydrogen then oxygen is released to the atmosphere.

Answer Link

02-12-2016

gd helmsman p xl a Smallwood Rosemarie

Answer Link

Otras preguntas

What is the solstice? list some examples of each.

Arsenic is often obtained by heating the ore arsenopyrite, FeAsS. The decomposition of FeAsS is represented by the balanced equation below. FeAsS(s) ==heat==>

Which chemical equation represents the reaction of an Arrhenius acid and an Arrhenius base? (1) HC2H3O2(aq) + NaOH(aq) --> NaC2H3O2(aq) + H2O(l) (2) C3H8(g)

In terms of energy and entropy, systems in nature tend to undergo changes toward (1) higher energy and higher entropy (2) higher energy and lower entropy (3) lo

why do people shiver when they listen to music?

Solve by using the perfect squares method. x2 + 16x + 64= 0 a. –8 b. –16 c. 8 d. 16

Adding a catalyst to a chemical reaction results in (1) a decrease in activation energy and a decrease in the reaction rate (2) a decrease in activation energy

solve for v p=mv Answer choices: M=v/p V=p/m V=m/p M=p/v

7m-35=5+2m what is m

Which particle has the same electron configuration as a potassium ion? A. fluoride ion B. sodium ion C. neon atom D. argon atom