Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Did you know?
Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.
Internal Anatomy of the pigeon
Internal structures of the eye
The kidney with an expanded view of the nephron.
Internal female reproductive tract.
Bone’s Role in Calcium Homeostasis
The functional role of pRB. The pRB protein product of RB1