Mitochondria supply most of the energy for cell use.
a. true
b. false
Ans: a. true
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Scientists conduct a study in which 100 adults with chronic diarrhea are divided into 2 groups of 50 people. One group is given a supply of yogurt that contains a certain kind of bacteria and the other group is given yogurt that is bacteria free. The study's participants and researchers do not know which group of subjects has the bacteria in the yogurt and which group does not. The scientists instruct the participants to eat the entire 8 ounces of yogurt once a day for a month and record the their bowel habits. This is an example of a(n) ________ study.
A. introspective B. double-blind C. hypothetical D. uncontrolled
The physiological anemia of pregnancy is a result of ________.
a. an increase in the mother's blood volume b. a decrease in the mother's iron absorption c. a decrease in the mother's water consumption d. a decrease in the mother's red blood cell production
When the meat is a bright cherry red, it means that it is fresh and still capable of picking up nitrogen from the air
Indicate whether the statement is true or false
Which element, if present in high concentrations in the body, disrupts normal zinc functions?
A) ?cadmium B) ?chromium C) ?selenium D) ?molybdenum