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Author Question: Left bundle branch block has a QRS interval of at least ________ seconds. (Read 71 times) |
Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
The familiar sounds of your heart are made by the heart's valves as they open and close.