The internal anatomy of the brain has which structure?
A. White matter only
B. White matter surrounded by gray matter
C. Gray matter only
D. Gray matter surrounded by white matter
Answer: B
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the adrenal glands sit on top of the
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The amount of fat stored inside skeletal muscle fibers is ________ by endurance training.
A. unchanged B. decreased C. increased
Which of the following lists the levels of human structure from smallest to largest?
A. Organelles, cells, tissues, organs, organ systems B. Organelles, organisms, organs, organ systems C. Cells, organisms, organelles, organs, organ systems D. Cells, organs, tissues, organisms, organ systems E. Organelles, cells, organs, tissues, organisms
What happens to blood H+ levels as blood CO2 levels rise?
A) Hydrogen ion levels decrease. B) Blood becomes more alkaline. C) Hydrogen ion levels increase. D) Bicarbonate ions absorb the hydrogen ions.