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A student is examining how muscle cells contribute to the function of the human body. The student organizes the levels of organization as follows:

Muscle Cell
Muscle Tissue
?
Muscular System
Human Body
Which structure correctly fills in the missing level in the hierarchy?
(5 Points)

Skeletal System

Heart

Circulatory System

Mitochondria

1 answer

The correct structure that fills in the missing level in the hierarchy is Skeletal System.

The levels of organization for muscle cells follow this sequence:

  1. Muscle Cell
  2. Muscle Tissue
  3. Skeletal System
  4. Muscular System
  5. Human Body

The skeletal system includes the muscles that are attached to the bones, contributing to movement, which fits logically in this hierarchy.