Wednesday, February 28, 2018


Choose the letter of the correct 

1. The system in the human body responsible for the continuation of the human race.
A. circulatory           B. respiratory                    C. reproductive      D. integumentary

2. There are _______ organ systems of the human body.
A. 8              B. 10            C. 9              D. 12

3. The most important organs of the nervous system are __________.
A. blood & heart      B. brain & spinal cord        C. testes & ovaries  D. bones & muscles

4. The estrogen and progesterone are produced in the ________.
A. ovaries    B. testes       C. pituitary glands   D. brain

5. The developing fetus stays in the _______ until it is ready to be born.
A. cervix       B. fallopian tube      C. ovaries     D. uterus

6. It is responsible for the production of sperm and testosterone.
A. prostate    B. testis       C. scrotum              D. penis

7. It is made up of the lungs and the airways which facilitate the exchange of gases with the environment and within the body.
A. circulatory system   B. sensory system    C. respiratory system  D. urinary system

8. The ________ separates the thoracic cavity, containing the heart and lungs, from the abdominal cavity and performs an important function in respiration: as it  contracts, the volume of the thoracic cavity increases and air is drawn into the lungs.
A. stomach            B. diaphragm       C. liver         D. small intestine

9. This system enables the body to extract energy from the food we eat.
A. endocrine          B. urinary               C. nutritive   D. digestive

For Item 10 – 12, see the drawing below and answer the question
(Image from

10. The breaking down or digestion of foods starts in the ___________.
A. esophagus          B. mouth      C. stomach   D. small intestines

11. The largest organ in the digestive system is the ________.
A. liver         B. small intestine     C. large intestine     D. stomach

12. A hormone produced by the pancreas necessary for the absorption of glucose in the body is called ________.
A. bile           B. enzyme              C. insulin               D. ptyalin

13. The following are the characteristics of mammals except _______.
A. They have hair or fur.
B. Most mammals are born alive.
C. They are cold-blooded animals.
D. They have special organs called mammary glands.

14. The blue whale is classified as a/an  __________.
A. fish           B. amphibian           C. reptile       D. mammal

15. Which of the following does not belong to the group.
A. frog, salamander, newt            B. jellyfish, bonito, galunggong
C. turtle, crocodile, snake            D. whale, gorilla, cow

16. Bats are classified as ___________.
A. birds         B. reptiles               C. mammals           D. amphibians

17. Sharks are classified under _________.
A. fishes      B. mammals           C. amphibians         D. reptiles

18. A characteristic that helps an organism survive in its natural environment is called __________.
A. natural selection            B. adaptation         C. protection           D. habitat

19. Any color, shape or pattern that lets an organism blend into its environment is known as a __________ .
A. camouflage        B. artistry      C. coloring    D. mimicry

20. An adaptation in which an organism gets protection from predators by looking like a dangerous animal is called __________.
A. protective resemblance   B. protective coloring       C. hibernating         D. mimicry

21. Alugbati and banana are examples of ___________ plants because their stems are soft, usually smooth, and greenish in color.
A.  woody     B. herbaceous       C. shrub                 D. aerial

22. Which of the groupings below is not correct?
A. narra, terrestrial, tree              B. upo, terrestrial, vine     
C. banana, terrestrial, tree         D. santan, terrestrial, shrub

23. Lotus is a/an __________plant.
A. aerial        B. terrestrial            C. woody      D. aquatic

24. These are plants that grow upright, but stay close to the ground and do not grow tall.
A. shrubs      B. vines        C. trees        C. flowering

25. The following are the bases for the classification of plants except ________.
A. habitat      B. have lowers and seeds  or not C. type of stem       D. means of production

26. They are egg-laying mammals. Examples are the platypus and echidna.
A. marsupials          B. monotremes      C. placentals           D. birds

27. _________ are mammals whose young are born in a relatively undeveloped state. After being born, the young (called ‘joeys’) crawl into a special pouch in the mother’s body. Here they undergo further development, and have access to their mother’s milk. Examples include the opossums, kangaroos, wallabies, bilbies, and bandicoots.
A. placentals           B. monotremes       C. marsupials         D. primates

28. They give birth to live young. While in the womb, the developing fetus receives nourishment from an organ called a placenta. They include the tiger, blue whale, vampire bat, and man. These mammals are called _______________.
A. placentals                    B. marsupials          C. monotremes       D. reptiles    

29. Wikipedia mentioned the five climates of the Philippines as tropical rainforest, tropical savanna, tropical monsoon, humid subtropical, and _________.
A. volcanic              B. oceanic              C. temperate           D. rainy

30. Based on the distribution of rainfall, the climates of the Philippines are classified into 4 types. Type IV is characterized as_______.
A. Two pronounced seasons: dry from November to April and wet during the rest of the year.
B. No dry season with a pronounced rainfall from November to January.
C. Seasons are not very pronounced, relatively dry from November to April, and wet during the rest of the year.
D. Rainfall is more or less evenly distributed throughout the year.

31. Which of the following is not a function of the nervous system?
A. The nervous system makes the body move.
B. The nervous system helps people detect stimuli from their environment.
C. The nervous system delivers oxygen to all parts of the body. 
4. The nervous system helps us to think and remember.

32. The ______is the center of the nervous system and the seat of human intelligence.
A. medulla oblongata         B. brain        C. spinal cord          D. cerebellum

For item 33 – 35, refer the table below:

I. Cerebellum
II. Cerebrum
III. Medulla oblongata
IV. Cerebral cortex

33. It transmits signals between the spinal cord and the brain. It also controls autonomic or involuntary functions such as heartbeat and breathing.
A. I               B. II              C. III             D. IV

34. Cognitive processes such as thinking, memorizing and decision making occur in this outer gray part of the cerebrum.
A. I               B. II              C. III             D. IV

35. It is sometimes referred to as the “little brain” and it controls muscle coordination and balance.
A. I               B. II              C. III             D. IV

36. The circulatory system is composed of the heart and _______.
A. blood        B. varicose veins     C. blood vessels    D. oxygen

37. Which of the following is not a function of the blood?
A. It helps in the production of carbon dioxide.
B. It transports oxygen and food to the cells of the body.
C. It helps fight against harmful organisms like bacteria.
D. It serves to carry waste products to be excreted by the body.

38. The following conditions are associated with the circulatory system except _____.
A. hypertension       B. myocardial infarction     C. varicose veins     D. paraplegia

39. It is caused by the blockage of arteries. A person experiencing it feels a sudden chest pain, usually radiating to the left shoulder and arm, and even to the back, accompanied by sweating and difficulty in breathing.
A. high blood pressure       B. heart attack       C. anemia     D. rheumatic heart disease

For item 40 – 42, study the diagram below from and answer the questions.

40. What do you call the sun and water in the food chain or ecosystem?
A. autotrophs        B. biotic components         C. abiotic components     D. decomposers

41. What is the immediate effect if the snake is absent in the food chain?
A. The grass will die.
B. The frog will temporarily increase its number.
C. The hawk will eventually die.
D. The decomposer will have nothing to eat.

42. Which of the following animals in the food cycle is carnivorous?
A. frog
B. snake
C. hawk
D. all of the above

For item 43 – 44, refer the diagram below and answer the questions.
(Image from

43. What aids in photosynthesis?
A. respiration          B. oxygen     C. carbon dioxide  D. human

44. What is the immediate effect if carbon dioxide is removed from the cycle?
A. The plant will die first.
B. The human will die first.
C. Plants and animals will die at the same time.
D. The earth will die.

45. Barangay Walang Ilaw is having an increase in birth rate over the years. What will happen if this will continue?
A. increase demand for fresh water and food
B. malnutrition and starvation
C. deterioration of living conditions
D. all of the above

46. It is a disease caused by the bite of the female Anopheles mosquito infected with Plasmodium parasites.
A. dengue     B. malaria    C. typhoid fever       D. influenza

47. Common cold can be treated by antibiotic.
A. true                    B. false        C. sometimes          D. often

48. Intestinal worms or ascaris can be treated by ___________.
A. lagundi     B. sambong  C, pansit-pansitan   D. niyug-niyogan

49. The people of Barangay Lulubog-Lilitaw lives beside a river where it serves as their communal garbage and sewage facility. What would happen to the river in the coming years?
A. The river will bring water-borne diseases.
B. The river will become polluted over time.
C. The river will dried out.
D. All of the above.

50. A powerful earthquake happened in a community. What do you expect to see?
A. Some people died.
B. Buildings collapsed.
C. Roads and bridges destroyed.

D. All of the above.

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