What human organ cleans fifty gallons of blood every day?

Describe the effects and potential risks associated with pica. include lead poisoning in the discussion.

There are many people who do not look like the people we are familiar with. some scientists believe that this "fear of others who look different" stems from our prehistoric days. our brains said "run" when we met others who did not look the same as us. use your imagination and ask yourself how would react to someone with hypertrichosis?

Which of the following statements is accurate in describing the activity of the lactase enzyme? a. lactase can function equally effectively at many different ph levels b. the shape of lactase does not change during the reaction c. lactase is converted to glucose and galactose by the reaction d. one lactase enzyme can catalyze many reactions