V. EVALUATION. Choose the letter of the best answer. Write only the letter of your answer.
_____1. Each part of an organ system plays a specific function. Which of the following structures
DOES NOT match its function?
A. eyes: sight C. ears: respiration
B. heart: blood circulation D. skin: protection

_____2. Every time we eat, which body system is in control of digesting the food that we consume?

A. digestive system C. excretory system
B. circulatory system D. nervous system

_____3. Raymond was playing street basketball with his friends when he suddenly experienced difficulty
in breathing. He was having an asthma attack. What system of his body is suffering in this situation?
A. nervous system C. respiratory system
B. digestive system D. circulatory system
_____4. Which of the following statement is TRUE?

A. Groups of organs working together are called cells.
B. Groups of cells working together are called tissues.
C. Groups of organ systems working together is called a cell.
D. All of the above

_____5. Which of the following should we avoid to keep our bodies healthy?
A. smoking C. not exercising
B. junk foods D. all of the above