Browse Reference Articles
71 to 80 of 958 articles
-
Epithelium
In zootomy, epithelium is a tissue composed of a layer of cells. Epithelium lines both the outside (skin) and the inside (e.g. intestine) of organisms. The outermost layer of our skin is composed of ... > more -
Bighorn Sheep
Bighorn Sheep is a species of sheep in North America with two endangered subspecies, Desert Bighorn Sheep and California Bighorn Sheep. Bighorn Sheep are named for the large, curved horns borne by ... > more -
Immune system
The immune system is the system of specialized cells and organs that protect an organism from outside biological influences. (Though in a broad sense, almost every organ has a protective function - ... > more -
Isoflavone
Isoflavones are a class of organic compounds and biomolecules related to the flavonoids. They are acting as phytoestrogens that are thought of by some as useful in treating cancer. They are also very ... > more
Search ScienceDaily
Number of stories in archives: 137,158

