Grade 12 Human Body Systems Worksheet
A comprehensive worksheet covering various human body systems for Grade 12 Biology students.
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Grade 12 Human Body Systems Worksheet
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following is the primary function of the lymphatic system?
Gas exchange
Fluid balance and immune response
Nutrient absorption
Hormone regulation
2. Which part of the brain is responsible for coordinating voluntary movements and maintaining balance?
Cerebrum
Brainstem
Cerebellum
Thalamus
1. The system is responsible for the transport of oxygen, nutrients, and hormones throughout the body.
2. The functional unit of the kidney is the , which filters waste products from the blood.
3. Muscle contractions are initiated by signals from the nervous system, specifically from motor .
1. The diaphragm contracts during exhalation to push air out of the lungs.
True
False
2. The primary role of red blood cells is to fight infections.
True
False
1. Briefly describe the main components and function of the central nervous system.
2. Explain the process of gas exchange in the alveoli of the lungs.
Match each organ with its primary body system.
1. Pancreas
a. Circulatory System
2. Spleen
b. Endocrine System
3. Trachea
c. Lymphatic System
4. Aorta
d. Respiratory System
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