An individual suffering from constipation should ____.
A) decrease water intake
B) increase fiber intake
C) decrease physical activity
D) ignore defecation signals
Question 2
When superoxide radicals accumulate, superoxide dismutase catalyzes the formation of hydrogen peroxide. What happens to the hydrogen peroxide?
A) It freely dissociates to water.
B) It is excreted in the urine and through the lungs.
C) It is converted to water and oxygen via catalase or glutathione peroxidase.
D) It is used in the synthesis of DNA and RNA.
The water cycle.
From space earth shows itself as a planet covered mostly by water.
White tiger in water at the Singapore Zoo
water movement
This lithograph by Currier and Ives gives an erroneous impression of the “battle.” Major Robert Ande
Ocean water is layered from top to bottom