Structural Organization of the Human Body

Which level of organization directly follows the cellular level?

• Organ level

• Tissue level

• Organ system level

• Molecular level

What is the smallest unit of matter mentioned?

• Organelle

• Atom

• Cell

• Molecule

What is the smallest independently functioning unit of a living organism?

• Molecule

• Atom

• Cell

• Organelle

How many distinct organ systems are discussed in the human body?

• 12

• 11

• 10

• 9

Which of the following is NOT a function of the skeletal system?

• Producing blood cells

• Supporting body movements

• Enclosing internal body structures

• Supporting the body's structure

What is the primary function of the nervous system?

• To support body movements

• To process and respond to sensory information

• To regulate body temperature

• To produce hormones

Which organ system is primarily responsible for hormone secretion?

• Nervous system

• Endocrine system

• Respiratory system

• Cardiovascular system

Which system is responsible for delivering oxygen and nutrients to tissues?

• Cardiovascular system

• Respiratory system

• Lymphatic system

• Endocrine system