Did you know?
Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
Did you know?
Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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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.
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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
The three basic body plans of bilaterally symmetrical animals.
There are multiple pathways for heat exchange between organisms and the environment.
Adaptations to the Environment
The Environment Influences Gene Expression
International Performance in Reading, Math, and Science, Eight Grade
The PharmGKB Knowledge Pyramid