Did you know?
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Did you know?
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Did you know?
The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
A phylogenetic tree of all living things
Unrooted tree of proteobacteria
Silver leaf tree
Tulip Tree
Kara Walker, Insurrection! (Our Tools Were Rudimentary, Yet We Pressed On).
Phylogenetic tree constructed by comparing homologies in cytochrome c amino acid sequences