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Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
Did you know?
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.