1. One who specializes in all kinds of fishes and their characteristics developing expertise in:
A. Ichthyology
B. Entomology
2. Branch of Science that deals with the study of the
relationship between plants, animals and other living things found in their
habitats.
A. Ecosystem
B. Ecology
3. Which of the following best describes the science of
Ecology?
A. Living things
B. Life and environment
4. _____________is to insects as toxicology is
to______________.
A. Etymology : toxicity
B. Entomology : poisons
5. Which of the following is not a type of cell?
A. Sperm
B. Virus
6. Which of the following does not have eukaryocytes?
A. Bacteria
B. Fungi
7. What do you call the organisms who only eats plants
and algae?
A. Herbivore
B. Omnivore
8. In the energy pyramid, which organisms occupy the
base?
A. Herbivores
B. Producers
9. What do you call the consumers that directly feed on
producers and get the greater amount of energy?
A. Omnivores
B. Herbivores
10. At night plants conserve _______ and restrict ______
intake.
A. Water; oxygen
B. Water; carbon dioxide
11. Arthropods
exhibit fast and coordinated movement because they possess:
A. An endoskeleton
B. Jointed appendages
12. Plant cells differ from animal cells in that only
plant cells possess:
A. Lysosomes
B. A cell wall
13. What functional group differentiates chitin from
cellulose?
A. Carboxyl group
B. Amino group
14. Which of the following does not exist in
carbohydrates?
A. Hydrogen
B. Nitrogen
15. Which of this is not a multicellular organism?
A. Human
B. Amoeba
16. Organisms that can manufacture their own food are
called:
A. Autotrophs
B. Heterotrophs
17. Which of the following is not used in the manufacture
of food by
green plants?
A. Carbon dioxide
B. Oxygen
18. Commensalism is when:
A. Neither species affects the other
B. One species benefits while the other is unaffected
19. Living and feeding on leaves by the caterpillar is an
example of:
A. Parasitic
B. Predatory
20. Which of the following statements is TRUE about
parasites and their relationships with
their host?
A. The host enjoys the benefits of a relationship in
which the parasite is harmed or killed.
B. The parasites enjoy the benefits of a relationship
in which the host is harmed or killed.
21. What relationship exists between frogs and fishes in
a pond ecosystem?
A. Predation
B. Competition
22. An owl and a hawk both eat mice. Which of the
following of these terms describes the relationship between a hawk and an owl?
A. Mutualism
B. Competition
23. Which of the organisms is cold-blooded with a dry
scaly skin?
A. Frog
B. Lizard
24. Animals which live on land but return to the water to
breed:
A. Reptiles
B. Amphibians
25. Bamboo is classified as:
A. Bush
B. GrassB
26. What type of body covering makes up a mammal?
A. Shell
B. Fur
27. Birds have shapes that influenced the building of
aircrafts. What feature is most present in airplanes?
A. The presence of hollow oblong body
B. The presence of wings
28. Butterflies and mosquitoes have mouthparts in the
form of a long, narrow, coiled tubed called:
A. Mandibles
B. Proboscis
29. Which group of organisms cause "red tide?"
A. Algae
B. Dinoflagellates
30. The molecules that contain an organism's genetic
make-up called:
A. Nucleic acid
B. Genetic membrane
31. The part of a plant cell that stores water, sugar and
minerals
A. Vacuoles
B. Chloroplasts
32. Which among the following are duplicated during the
process of mitosis?
A. Centrosomes
B. Chromosomes
33. Which of the following does not contribute to the
variation in population?
A. Mitosis
B. Crossing over
34. Which of the following means development of egg
without fertilization?
A. Parthenogenesis
B. Meiosis
35. Diploid cells have two copies of chromosomes. These
two copies are called:
A. Chromatids
B. Homologous
36. Which among the following is the only method of
contraception that has 100% success rate?
A. Withdrawal method
B. Abstinence
37. At present, a patient fights cancer either through
surgery or by subjecting him/her to a drug treatment called:
A. Irradiation
B. Chemotherapy
38. If carbohydrates are hydrophilic organic compounds,
lipids are _________ organic compounds.
A. Hydrophobic
B. Polypeptide
39. Which of the following is not a source of
carbohydrate?
A. Sugar
B. Meat
40. Which of the following is an isomer of glucose?
A. Fructose
B. Maltose
41. Sugar and starches are called:
A. Carbohydrates
B. Minerals
42. The four most essential element needed by the human
body:
A. Carbon, hydrogen, oxygen, phosphorous
B. Nitrogen, hydrogen, oxygen, carbon
43. Which of the following is a vitamin?
A. Niacin
B. Pepsin
44. The number of calories in a food indicates:
A. The amount of energy that can be obtained from the
food
B. The amount that can be digested from the food
45. The chemical process of getting energy from the food
and using it to maintain the structure and function.
A. Respiration
B. Metabolism
46. According to the level of organization, which is at
the highest level?
A. Ecosystem
B. Biosphere
47. The flow of water in our planet as it undergoes the
processes of evaporation, condensation, precipitation, infiltration, runoff and
subsurface flow is called:
A. Rain cycle
B. Water cycle
48. It is a common observation that mushrooms thrive few
days after lightning strikes. Which among the following biogeochemical cycles
is involved in this process?
A. Nitrogen cycle
B. Carbon-Oxygen cycle
49. Plants absorb dissolve nitrates from the soil and convert
them into__________.
A. Urea
B. Free nitrogen
50. Global climate change is being attributed to the
atmospheric increase in what two gases produced by human activities?
A. Methane and Carbon dioxide
B. Nitrous oxide and Sulfur dioxide
51. Acid rain occurs when____________.
A. Phosphorus-rich water in lakes evaporates to form
phosphoric acid.
B. Sulfur released in burning fossil fuels combines
with water in the atmosphere.
52. Which of the following sentences about greenhouse
effect is INCORRECT?
A. Greenhouse gases trap heat in the atmosphere which are
returned to the earth’s surface.
B. Greenhouse effect is due to gases that absorb the
green region of light from the sun.
53. Which of has following group of gases contribute to
the ‘Green House Effect’?
A. Carbon tetrafluoride and Nitrous oxide
B. Carbon dioxide and Methane
54. Opening of cement plants requires getting a DENR
clearance. Which of these clearances are required?
A. Air Pollution Clearance
B. Environmental Clearance (ECC)
55 . Plants need carbon dioxide, water, light and
chlorophyll in order to make starch by photosynthesis. Carbon dioxide enters
plants through holes in the leaves called;
A. Stomata
B. Lenticels
56. Which part of the flower develops into the fruit?
A. Ovule
B. Ovary
57. In addition to ATP, what are the end products of
glycolysis?
A. CO, and NADH
B. NADH and pyruvate
58. A plant growing on a shady side of a tall fence bends
around the corner of the fence toward the sunlight. This illustrates;
A. Positive phototropism
B. Negative phototropism
59. What is the storage cell of plants?
A. Collenchyma
B. Parenchyma
60. Cell walls present in plant cells are made up of
which compound?
A. Lipids
B. Cellulose
61. Which of the following nutrients is incorrectly paired
with its function in a plant?
A. Magnesium: constituent of chlorophyll
B. Iron: component of chlorophyll
62. We have energy responsible for life on Earth. The
source of this energy is the:
A. Wind
B. Sun
63. Who is the Father of Genetics?
A. Charles Darwin
B. Gregor Mendel
64. Damage to DNA that is not repaired and then
replicated can result in genetic disorders. This demonstrates:
A. Mutation
B. Pathology
65. Which of the following base pairs are complimentary
to each other in a DNA molecule?
A. Cytosine and guanine
B. Thymine and cytosine
66. Generally, identical organisms are known as:
A. Variants
B. Clones
67. What is the technology being used now in the surgery
of the retina?
A. Laser
B. Optical ray
68. lie coined the term "survival of the
fittest."
A. Darwin
B. Spencer
69. lie evolved the Theory of Evolution in his book
"Origin of Species."
A. Archimedes
B. Darwin
70. The origin of the modern man:
A. Tabon
B. Sapiens
71. Which of the following is the correct sequence from
the 'Oldest era to the latest?
A. Precambrian, Paleozoic, Mesozoic, Cenozoic
B. Paleozoic, Cenozoic, Precambrian, Mesozoic
72. The evolution of life forms on earth has been
dependent on:
A. The rate of change occurring in different earth environments
B. The typical and chemical evolution of the earth
73. Which of the following sets the condition under
survival occurs?
A. Random change
B. The environment
74. What wave patterns of the EEG are active in an awake
person?
I. Alpha wave
II. Beta wave
III. Delta wave
IV. Theta wave
A. I and II
B. I and IV
75. Which system defends the body against infectious
diseases?
A. Lymphatic system
B. Immune system
76. The liquid portion of the blood is the:
A. Plasma
B. Hemoglobin
77. Which of the following blood types is regarded as a
universal donor?
A. 0
B. AB
78. Blood types AB and 0 can safely be given to a person
with blood type:
A. A and B
B. AB and 0
79. On an average how many litres of blood a human body
have?
A. 2-3 litres
B. 5-6 litres
80. White blood cells, the skin and the antibodies are
similar because they:
A. Supply oxygen to the body
B. Protect the body against certain harmful organisms
81. Which structure closes the opening in the larynx
while we are swallowing?
A. Pharynx
B. Epiglottis
82. Myopia is connected with:
A. Ears
B. Eyes
83. Bile is produced by the:
A. Liver
B. Gallbladder
84. What do you call that wave-like contraction of the
wall of the esophagus which is responsible for pushing down the food to the
stomach?
A. Peristalsis
B. Cyclosis
85. Which blood vessels carry blood back to the heart?
A. Veins
B. Arteries
86. Which of the following is a thigh bone?
A. Humerus
B. Femur
87. Considered as essential to human life as it gives us
framework and support to protect the
viral organs and other structure of the body:
A. Joints
B. Bones
88. Which of the following parts of the circulatory
system distributes the digested fats such as fatty acids and glycerol
throughout the body?
A. Capillaries
B. Lacteals
89. Which hormone promotes the development of secondary
male sexual characteristics?
A. Gonads
B. Testosterone
90. Apparently, the loss of weight of objects immersed in
a fluid is due to:
A. Buoyant force
B. Archimedes principle
91. Which of the following is not a source of energy?
A. Nuclear geothermal heat
B. Inertia at rest
92. Which law of motion could explain what happens every
time we walk?
A. Law of Interaction
B. Law of Inertia
93. Which of the following does not cause the different
seasons?
A. Tilting of the earth's axis
B. Evolution
94. Why do we see the sun rise in the east?
A. The earth revolves eastward.
B. The earth rotates from west to east.
95. What important metallic elements are found at the
inner core of the Earth?
A. Iron and silicon
B. Iron and nickel
96. Iron is what type of magnetic material?
A. Ferromagnetic
B. Paramagnetic
97. Which of the following is a mixture?
A. Saltwater
B. Carbon dioxide
98. A change in the shape or size of an object can be
classified as:
A. Physical change
B. Chemical change
99. The result when there is lack of cohesion among gas
molecules.
A. Molecules are compressed into smaller volumes
B. Molecules move freely in all directions
100. Which of the following statements represents a
physical change?
A. The lawn grows thicker every day because fertilizers
were added into the soil.
B. Frozen mango juice melted when left standing at room temperature for 30 minutes.