Republic of the Philippines
Department of Education
SCHOOLS DIVISION OF CALAPAN CITY
MANAGPI NATIONAL HIGH SCHOOL
FOURTH QUARTERLY TEST
SCIENCE 8
SY. 2022-2023
Direction: Choose the letter of the correct answer. Write your answers on a separate sheet of paper.
1. Which of the following is the correct order of the digestive tract?
A. mouth → rectum → esophagus → rectum → anus → small intestine→ large intestine
B. mouth → stomach → esophagus → rectum → anus → small intestine→large intestine
C. mouth → esophagus → stomach → small intestine → large intestine→ rectum → anus
D. mouth → esophagus → stomach → small intestine → anus→ large intestine → rectum
2. What will happen to the undigested food that passes through the digestive tract?
A. goes to the pancreas to await disposal
B. enters the stomach and awaits disposal
C. goes to small intestine and awaits disposal
D. moves down to the large intestine and awaits disposal
3. Which of the following is the main work of the digestive system?
A. fights disease
C. breaks down food
B. regenerates cells
D. distributes energy throughout the body
4. What aids the passage of food through the digestive tract?
A. pull from the anus
C. movement of the cilia
B. chemical absorption
D. wavelike muscle contractions
5. Which tiny structures line the internal surface of the small intestine to increase its surface area for the
absorption of nutrients?
A. bile ducts
B. cilia
C. salivary glands
D. villi
6. How do nutrients from digested food reach the blood?
A. by passing through the esophagus into the blood
B. by being absorbed into the blood through the blood vessels
C. by being absorbed into the blood through the walls of the lungs
D. by passing through the small intestine into the large intestine, then into the blood.
7. Which stage of mitosis is where the chromatids of chromosomes separate and begin to move away from
each other?
A. anaphase
B. metaphase
C. prophase
D. telophase
For items 8 – 9, refer to the statement below. Solanum tuberosum or potato has a chromosome number of
24 (2N).
8. How many chromosomes are there during metaphase?
A. 12
B. 24
C. 36
D. 48
9. How many daughter cells are there by the end of telophase?
A. 1
B. 2
C. 12
D. 24
10. Which diagram correctly represents the process of meiosis?
Championing Human Aspirations with Respect, Modesty, Empathy and Dynamism -CHARMED MNHS
Managpi National High School
Calapan City Oriental Mindoro
0956-538-6689 / 0917-656-2178
301805@deped.gov.ph
Republic of the Philippines
Department of Education
SCHOOLS DIVISION OF CALAPAN CITY
MANAGPI NATIONAL HIGH SCHOOL
11. The following statements are true about meiosis EXCEPT:
A. It occurs in reproductive cells.
B. It results in four haploid (N) daughter cells.
C. Exchanging of genetic material does not occur.
D. Pulling apart of homologous pairs of chromosomes occurs
.
14. Which one indicates a normal human male?
A. X chromosome B. XX chromosomes
C. XY chromosomes
D. XXY chromosomes
15. The other name for Cri-du-Chat syndrome is _______.
A. trisomy 13
B. trisomy 21
C. 47, XXY syndrome
D. “Cat cry” syndrome
16. What is the key role of meiosis in gametogenesis?
A. for growth of body cells
C. for cell repair and replacement
B. for asexual reproduction
D. for reduction of the chromosome number of gametes
17. A child with Klinefelter syndrome has how many chromosomes?
A. 44
B. 45
C. 46
D. 47
18. Which causes Down syndrome?
A. viral infection
C. chromosomal abnormality
B. bacterial infection
D. lack of oxygen supply to the brain at birth
19. Homozygous dominant allele is represented by the letters ____________.
A. RR
B. Sr
C. Rr
D. R
20. Who pioneered the study of Genetics?
A. Carolus Linnaeus
C. Gregor Mendel
B. Charles Darwin
D. Robert Brown
21. An organism that has two different alleles for a single trait is said to be _____ for that trait.
A. haploid
B. homozygous
C. polyploid
D. heterozygous
22. A cross between true-breeding green and yellow plants (green pea color is dominant) results in ____
A. plants with 1 yellow and 3 green peas
C. plants with 1 green and 3 yellow peas
B. plants with all yellow peas
D. plants with all green peas
23. Which principle states that allele pairs separate independently during the formation of gametes?
A. segregation
B. dominance
C. independent assortment
D. codominance
24. An organism's expressed physical traits, such as hair color or shape, are called ____.
A. phenotype
B. genotype
C. allele
D. gametes
25. Which represents an ecosystem with high species abundance and with high species diversity?
A. a rice field
C. a farm of thousands of sunflowers
B. a banana plantation
D. an island with many rare birds and insects
Championing Human Aspirations with Respect, Modesty, Empathy and Dynamism -CHARMED MNHS
Managpi National High School
Calapan City Oriental Mindoro
0956-538-6689 / 0917-656-2178
301805@deped.gov.ph
Republic of the Philippines
Department of Education
SCHOOLS DIVISION OF CALAPAN CITY
MANAGPI NATIONAL HIGH SCHOOL
26. Which of the following is correct about the interrelatedness of biodiversity and sustainability?
A. Biodiversity has nothing to do with sustainability.
B. The lower the biodiversity, the greater the sustainability.
C. The higher the biodiversity, the greater the sustainability.
D. The higher the biodiversity, the less sustainable the ecosystem
27. Which prediction will happen when hunting and collecting wildlife animals for trade to help raise the
economic status of some people continues?
A. It decreases the existence of wildlife species.
B. It increases the biodiversity of wildlife species.
C. It increases the reproduction of wildlife species.
D. It decreases the number of crimes committed by people.
28. Which ecosystem shows high species diversity?
A. a pond ecosystem populated by a single species of frogs
B. a marsh ecosystem covered by a single species of grass
C. a desert ecosystem populated only by cacti, camels, and armadillo lizards
D. forests, wetlands, and freshwater ecosystems populated by various kinds of species
29. Which describes species diversity?
A. a species that live in an area
B. an individual of each species on earth
C. the number of species that gets extinct each year
D. the number of species and individuals of each species in each area
30. Which most likely results if a forest is converted into roads?
A. Habitats for many species are destroyed.
B. Some of the animals migrate to other areas.
C. Soil quality increases in the deforested area.
D. Some plants and animals might be endangered
31. Which two domain systems were used by scientists to classify living organisms before they produced the
three-domain systems?
I. Archaea II. Bacteria III. Eukarya IV. Protista
A. I and II
B. I and III
C. II and III
D. I, II and II
32. Which arrangement reflects the Linnaean Hierarchical System of Classification in descending order?
A. domain–kingdom-phylum–class–order–family–genus–species
B. domain–phylum–genus–species–class–order–family–kingdom
C. kingdom–domain–phylum–genus–species–class–order–family
D. kingdom–domain–phylum–genus–species–class–family–order
33. Scientific names are derived from the ____________.
A. species classification using its species as the first name
B. genus classification using its genus as the first name
C. binomial system of classification having the first name based on its genus and second name
based on the species classification
D. binomial system of classification having the first name based on its genus and second name
based on the species classification written in italicized form
34. Which of the scientific names below is INCORRECTLY written?
I. Felis catus
III. Oryza sativa
II. Canis familiaris
IV. panthera leo
A. I only
B. II only
C. III only
D. IV only
35. Which statement is correct about the difference between the domains Archaea and Bacteria?
A. Archaea domain possesses a true nucleus while the bacteria domain does not.
B. Bacteria domain possesses a true nucleus while the Archaea domain does not.
C. Archaea species can live and settle in diverse places and some even in the most severe
environments while bacteria species cannot.
D. Bacteria species can live and settle in diverse places and some even in the most severe
environments while Archaea species cannot.
Championing Human Aspirations with Respect, Modesty, Empathy and Dynamism -CHARMED MNHS
Managpi National High School
Calapan City Oriental Mindoro
0956-538-6689 / 0917-656-2178
301805@deped.gov.ph
Republic of the Philippines
Department of Education
SCHOOLS DIVISION OF CALAPAN CITY
MANAGPI NATIONAL HIGH SCHOOL
36. The following are direct uses and importance of fungi in industry and community EXCEPT
A. use in making penicillin
C. use as ingredients in making bread
B. promote the growth of the plant
D. help in the decomposition of organic material
37. Which set of human activities overexploits biodiversity decreases the flora and fauna population and
endangers species up to the brink of extinction?
A. illegal gambling, discriminate logging, and farming
B. illegal logging, indiscriminate mining, and poaching
C. urban gardening, herbal medicine, and asexual farming
D. kaingin farming systems, flower marketing, and plant breeding
38. What are the benefits of recycling waste materials?
I. wasted time and effort
II. reduced volume of wastes
III. turned damaged materials into a useful one
IV. derived income from sold recyclable materials
A. I and II
B. II, III and IV
C. I and II
D. I, II and III
39. The Philippines has an abundant biological resource for foods, commercial merchandise, and natural
construction materials because of its rich _______and fauna.
A. aqua
B. flora
C. marina
D. tuna
40. Which is NOT a principle of ecosystem stability?
A. Biodiversity is maintained.
B. Ecosystems use sunlight as a source of energy.
C. Ecosystems replenish nutrients by recycling all elements.
D. The size of a consumer population is not maintained such that overgrazing and other forms of o
overuse do not occur.
41. Which of the following “ecosystem services” are derived from healthy biodiversity?
I. depletion of the water resources
II. nutrient storage and recycling
III. contribution to climate stability
IV. pollution breakdown and absorption
A. I, II and III
B. I, II and IV
C. I, III and IV
D. II, III and IV
42. Which actions of an environmental activist will promote the welfare of endangered species?
I. protect and maintain the endangered habitat
II. discretely buy hardwood lumber like narra and yakal for construction purposes
III. Coordinate with “bantay gubat” personnel to avoid hunting of endemic species
IV. initiate a program like seminars or lectures through the help of concerned personnel
A. I and II B. II and III
C. II, III and IV
D. I, III and IV
43. If there is 50 kcal of energy in the third trophic level, how much energy in kcal was available at the
first trophic level?
A. 5 kcal
B. 50 kcal
C. 500 kcal
D. 5,000 kcal
44. What will happen if producers are removed from the feeding process?
A. The feeding process will continue.
B. The feeding process remains constant.
C. The food chain and food web will not be possible
D. The food chain and food web will utilize animals as producers
45. Which consumer helps with the recycling of nutrients?
A. carnivore
B. decomposerC. herbivore D. omnivore
46. How will you describe the vital role of carnivores in a food chain?
A. They consume only plants to obtain energy.
B. They block the flow of energy in a food chain.
C. They serve as the main source of food for the consumers.
D. They control the number of other consumers at a reasonable number.
Championing Human Aspirations with Respect, Modesty, Empathy and Dynamism -CHARMED MNHS
Managpi National High School
Calapan City Oriental Mindoro
0956-538-6689 / 0917-656-2178
301805@deped.gov.ph
Republic of the Philippines
Department of Education
SCHOOLS DIVISION OF CALAPAN CITY
MANAGPI NATIONAL HIGH SCHOOL
47. Which of the following explains why fruit and vegetable eaters are energy efficient?
A. They do not use energy at all.
B. They burn much of their energy in a day.
C. They directly derive energy from the producer level.
D. They get their energy from first-degree consumer level
48. Which is NOT true about organisms at the highest trophic level in an energy pyramid?
A. They are apex consumers.
B. They can be meat and vegetable eaters.
C. They get the least amount of energy.
D. They get the greatest amount of energy
49. Which of the following is the role of animals in the oxygen-carbon dioxide cycle?
A. They exhale oxygen for plant use.
B. They release oxygen into the atmosphere.
C. They give off carbon dioxide for photosynthesis.
D. They inhale carbon dioxide from plants for survival
50. Which of the following is the role of nitrogen-fixing bacteria in the nitrogen cycle?
A. converts proteins into nitrates
B. changes ammonia into proteins
C. converts nitrogen gas into ammonia
D. transforms nitrates into nitrogen gas
51. Which of the following may be the role of some free-living bacteria on the soil?
A. to make unfertilized soil
B. help plants take in water
C. convert nitrogen into a usable form
D. make carbon dioxide for plants to go through photosynthesis
52. Which is correct about the relationship of plants and animals in an ecosystem?
A. Animals are dependent on dead plants.
B. Plants are used as fertilizers for animals.
C. Plants provide carbon dioxide for animals while animals provide oxygen for the plants.
D. Plants provide oxygen for the animals while animals provide carbon dioxide for the plants
53. Animals directly get the nitrogen they need from the _________________.
A. air they breathe B. plants they eat C. soil in their habitat
D. bacteria surrounding them
54. Which of the following does NOT belong to the biogeochemical cycle?
A Life Cycle
B. Water Cycle
C. Nitrogen Cycle
D. Oxygen- Carbon Dioxide Cycle
55. Which of the following is the effect of carbon dioxide build-up in the atmosphere?
A. The amount of available oxygen decreases.
B. There is less amount of solar energy reaching the earth.
C. Global temperature increases affect weather patterns.
D. Global air pressure increases making it more difficult for plants and animals to breathe
56. A girl on her way home noticed a puddle of water on the road. As she passed by the next day, the water was
gone. What has happened to the water? It has ______________.
A. condensed
B. evaporated
C. precipitated
D. transpired
57. Which of the following provides available natural oxygen?
A. animal
B. Decomposers
C. plant
D. water
58. Which of the following may happen when a large area of forest is destroyed by fire?
A. Less soil will be eroded.
C. Wildlife will be endangered.
B. More plants will be grown.
D. The land will have more fresh air.
59. The following activities harm the environment EXCEPT:
A. burning fossil fuels
C. planting trees in a nature reserve
B. using weed killers for farming
D. increasing the use of chlorofluorocarbons
60. Which is the best way to dispose of plastic waste?
A. burning them into ashes
C. throwing them into the drains
B. burying them in the soil
D. recycling them to make new plastic items
Championing Human Aspirations with Respect, Modesty, Empathy and Dynamism -CHARMED MNHS
Managpi National High School
Calapan City Oriental Mindoro
0956-538-6689 / 0917-656-2178
301805@deped.gov.ph