Unit 6 Review

Which of the following best describes the organization of subsystems from most complex to least complex?

• Organ: Organ System: Cell: Tissue

• Tissue: Organ System: Cell: Tissue

• Organ System: Organ: Tissue: Cell

• Cell: Tissue: Organ: Organ System

Which of the following best describes a group of similar cells working on a specific task?

• Tissue

• Cell

• Organ

• Organ System

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called

• healing

• homeostasis

• digestion

• respiration

Which of the following best describes the circulatory system? This system…

• Allows the heart, blood, and blood vessels to work together

• Consists of nerves and specialized cells known as neurons

• Consists of the lungs, which take in oxygen and expel carbon dioxide

• Allows the brain to function as a main part of the body

Skin, lungs, and kidneys are examples of....

• Organ system

• Tissues

• Cells

• Organs

The primary function of this system is to break down food into usable form and to remove waste products.

• Skeletal

• Digestive

• Muscular

• Respiratory

Which three systems of the human body function together to move and control body parts?

• nervous, skeletal, and muscular

• muscular, endocrine, and excretory

• digestive, excretory, and reproductive

• circulatory, endocrine, and respiratory

The diagram above shows a human arm bending at the elbow. Which two body systems most directly cause the arm to bend?

• skeletal and muscular

• reproductive and endocrine

• respiratory and excretory

• nervous and digestive

Which two systems of a rabbit’s body must be working together for the rabbit to run away from a fox?

• digestive and endocrine

• reproductive and nervous

• muscular and skeletal

• excretory and respiratory

What is the major function of the human excretory/urinary system?

• Absorb nutrients from food

• Break down food mechanically

• Eliminate liquid waste materials

• Respond to stimuli