FCAT Grade 8 Science Assessment Practice Questions

Category - FCAT Science Assessment Grade 8

The human body’s largest filter; it is part of both the circulatory and digestive systems.
  1. The lungs.
  2. The kidneys.
  3. The liver.
Explanation
Answer: C - Weighing in at approximately three pounds, the liver is the body’slargest filter, and part of both the circulatory and digestive systems. The liver is a vital organ and is responsible for over five hundred life-sustaining functions. The liver is responsible for the filtering and breakdown of all substances, including metabolic wastes and chemicals.Without this function, death will occur within twenty-four hours. Nutrients, vitamins, and fluids are filtered, with some vitamins kept as storage by the liver beforebeing circulated to body tissues. The liver also filters blood, removing old blood cells,bacteria, and other particles. The liver manufactures bile, which is necessary for the digestive process. It also stores energy in the form of glycogen.
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