<span>Lipids have long been used as lamp oil and along with candles were the main fuel for pre-industrial light sources. Whale oil was one of the main fuels harvested and fueled the 19th century whaling industry leading to widespread endangerment of various species. This practice is now outlawed except in a number of countries which mostly hunt whales for cultural purposes.</span>
A photograph of all the stained, prepared chromosomes in a eukaryotic cell is referred to as a karyotype
A. bind and unwind double helix
The visible light spectrum. Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. ... When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.
