Water is less dense as a solid than as a liquid. Normally this is reversed. Water has its maximum density at 4 degrees Celcius.
The fact that ice is less dense than water allows it to float on top of ponds so fish, frogs, etc can survive winters.
Peroxisomes play a key role in the oxidation of specific biomolecules. They also contribute to the biosynthesis of membrane lipids known as plasmalogens. In plant cells, peroxisomes carry out additional functions, including the recycling of carbon from phosphoglycolate during photorespiration.
Do you mean organisms as in plants? If so then it would be Photosynthesis.
Because everybody thinks scientifically by making observations and testing them
With its potential to eliminate and prevent hereditary diseases such as cystic fibrosis<span> and </span>hemophilia<span> and its use as a possible cure for </span>heart disease<span>, </span>AIDS, and cancer<span>, gene therapy is a potential medical miracle-worker.</span>
