Question

1. sep support an argument. a classmate says moving your arms and legs only uses the muscular system. complete the table to provide evidence that your classmate is mistaken.

body systems | involved in movement? | evidence
muscular system | |
nervous system | |
another system (partially visible) | |
digestive system | |
circulatory system | |
respiratory system | |
additional text about revising model and evidence, and a confidence rating with smiley faces

Explanation:

To solve this, we analyze each body system's role in arm/leg movement:

Muscular System

Muscles contract to generate the force needed for movement (e.g., biceps/triceps for arms, quadriceps/hamstrings for legs).

Nervous System

Sends electrical signals (via neurons) to muscles to initiate and control movement (e.g., brain/spinal cord coordinate actions).

Skeletal System

Provides the rigid structure (bones) that muscles pull on to create movement (e.g., humerus in arms, femur in legs act as levers).

Digestive System

Breaks down food into nutrients (e.g., glucose) which are absorbed and used by muscles as energy for movement.

Circulatory System

Transports oxygen (from lungs) and nutrients (from digestive system) to muscles; removes waste (like CO₂) from muscle cells during movement.

Respiratory System

Takes in oxygen (via lungs) and releases carbon dioxide. Muscles need oxygen for aerobic respiration to produce ATP (energy) for movement.

Body System	How it is Involved in Movement
Nervous System	Sends electrical signals to muscles to initiate/control movement (brain coordinates actions).
Skeletal System	Bones act as levers; muscles pull on bones to create movement (e.g., humerus, femur).
Digestive System	Provides nutrients (e.g., glucose) as energy for muscle contraction.
Circulatory System	Delivers oxygen/nutrients to muscles; removes waste (e.g., CO₂) from muscle cells.
Respiratory System	Supplies oxygen for aerobic respiration (ATP production) in muscles during movement.

This table shows multiple systems (not just muscular) are involved, proving the classmate is mistaken.

Answer:

To solve this, we analyze each body system's role in arm/leg movement:

Muscular System

Muscles contract to generate the force needed for movement (e.g., biceps/triceps for arms, quadriceps/hamstrings for legs).

Nervous System

Sends electrical signals (via neurons) to muscles to initiate and control movement (e.g., brain/spinal cord coordinate actions).

Skeletal System

Provides the rigid structure (bones) that muscles pull on to create movement (e.g., humerus in arms, femur in legs act as levers).

Digestive System

Breaks down food into nutrients (e.g., glucose) which are absorbed and used by muscles as energy for movement.

Circulatory System

Transports oxygen (from lungs) and nutrients (from digestive system) to muscles; removes waste (like CO₂) from muscle cells during movement.

Respiratory System

Takes in oxygen (via lungs) and releases carbon dioxide. Muscles need oxygen for aerobic respiration to produce ATP (energy) for movement.

Body System	How it is Involved in Movement
Nervous System	Sends electrical signals to muscles to initiate/control movement (brain coordinates actions).
Skeletal System	Bones act as levers; muscles pull on bones to create movement (e.g., humerus, femur).
Digestive System	Provides nutrients (e.g., glucose) as energy for muscle contraction.
Circulatory System	Delivers oxygen/nutrients to muscles; removes waste (e.g., CO₂) from muscle cells.
Respiratory System	Supplies oxygen for aerobic respiration (ATP production) in muscles during movement.

This table shows multiple systems (not just muscular) are involved, proving the classmate is mistaken.