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science 9.docx - Division of Taguig City of Pateros SIGNAL...

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Division of Taguig City of PaterosSIGNAL VILLAGE NATIONAL HIGH SCHOOLBalleser St. Central Signal Village, Taguig City1st PERIODIC TESTINSCIENCE 9Name : _________________________________Gr. & Sec.: _________ Date ___________ SCORE: ___________DIRECTION: Write the letter of the best answer on the space provided._____1. How does singing from the diaphragm, instead of the throat, help improve the voice quality of the singer?a.It supports proper breathingb. avoids voice strainingc. a only is correctd. a & b are correct_____2. Why does the body need oxygen?
_____3. What is the advantage of breathing faster during and after a strenuous exercise?
_____4. Which of the following respiratorydiseases are lung infections?
_____5. How can lifestyle affect the functioning of the respiratory and the circulatory systems?
a.It can weaken the respiratory and circulatory system.b.It can strengthen the respiratory and circulatory systemc.It can weaken the respiratory system but strengthen the circulatory system.d.Itcan both weaken and strengthen the respiratory and circulatory systems.._____6.In which organ does gas exchange take place?
_____7.Which should be omitted in the list?
_____8.When we breath in, we inhale many gases present in the air, including oxygen .What do you think happensto the gases that are not needed by the body? These gases will ________._____9. Since the valves act as the doors of the heart, what might happen if these doors do NOT close?
a.The bloodwill flow backwards.c. The blood will escape back to the chamber.b.Blood will NOTflowforwardinto the arteryd.all of the above_____10. What will happen if Oxygen is NOT transported by the blood to the other parts of the body?
_____11. The nutrients obtained from the food during digestion are supplied by the circulatory system to the body.

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Term
Spring
Professor
NoProfessor
Tags
Photosynthesis, C C G T A

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