According to a source the answer is <span><u>Cyanobacteria were the first organisms to produce oxygen in water, which then escaped into the atmosphere.</u>
These cyanobacteria species were the first ones to "produce" oxygen as a by-product of the photosynthetic mechanisms which enables organisms to make their own food. </span>
<span>In a hydrolysis reaction, water (H2O) is added to a bond and cleaves the bond holding molecules together, breaking polymers into 2 pieces. In total, you take a water molecule and split it among the two parts, H+ and OH-. These ions get added to either side with the higher affinity for the cation (H+) and anion (OH-). </span>
I know only three specific ones. They are: forebrain, midbrain, and hindbrain.
That is what we call the muscular system. This system allows us to move, circulates blood through the body and their is 3 types of muscle. Skeletal muscle is voluntary and are mostly attached to two bones. Smooth muscle is found inside organs such as stomach and blood vessels. And Cardiac muscle is ONLY found in the heart .
The atmosphere, it holds all air on earth and keeps life livable by protecting use from the suns rays. The answer is atmosphere. :)
