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Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.
Did you know?
For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.
![reactions of an ester with a carboxylate group to form an anhydride. The R group is the same in each](https://biology-forums.com/gallery/47/medium_9828_12_01_13_11_17_43.jpeg)
![This pre-Anasazi community in Mesa Verde, Colorado, was carved into a cliff, making it nearly impreg](https://biology-forums.com/gallery/47/medium_6_15_08_15_11_36_37_22212666.jpeg)