AIC SS 1 Biology Revision Test 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Bacteria aiding in digestion
B) Virus causing the flu
C) Fungi causing athlete's foot
D) Bacteria causing pneumonia
  • 2. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Waterborne
B) Airborne
C) Genetic inheritance
D) Vector-borne
  • 3. HIV stands for:
A) Human Immunodeficiency Virus
B) Human Influenza Virus
C) Highly Infectious Virus
D) Human Intestinal Virus
  • 4. Which of the following is a symptom of HIV?
A) All of the above
B) Fatigue
C) Skin rash
D) Persistent cough
  • 5. The maintenance of good health involves:
A) Proper nutrition
B) Regular exercise
C) All of the above
D) Adequate sleep
  • 6. Which organization is responsible for coordinating international public health efforts?
A) NMA (National Medical Association)
B) WHO (World Health Organization)
C) UNICEF (United Nations Children's Fund)
D) Red Cross Society
  • 7. Autotrophs are organisms that:
A) Depend on other organisms for food
B) None of the above
C) Break down dead organic matter
D) Produce their own food
  • 8. Heterotrophs obtain their food by:
A) Consuming other organisms
B) Decomposing organic matter
C) Photosynthesis
D) Chemosynthesis
  • 9. Which of the following is an example of a vector?
A) Fungi causing athlete's foot
B) Bacteria causing food poisoning
C) Virus causing the common cold
D) Mosquito transmitting malaria
  • 10. Which of the following is NOT a way to control vectors?
A) Vaccination
B) Use of bed nets
C) Elimination of breeding sites
D) Use of insecticides
  • 11. Which of the following is NOT a role of the Red Cross Society?
A) Conducting medical research
B) Providing humanitarian aid during disasters
C) Promoting health education
D) Blood donation and transfusion services
  • 12. Decomposers play a crucial role in ecosystems by:
A) Breaking down dead organic matter
B) None of the above
C) Providing food for other organisms
D) Producing oxygen through photosynthesis
  • 13. In the laboratory, turbidity can be measured with a ..............
A) Geiger muller counter
B) Speedometry
C) Spectrophotometer
D) Turbidometer
  • 14. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Pathogens
B) Antigens
C) Antibodies
D) Vectors
  • 15. Animal diseases caused by protozoa are the following except ......
A) Trypanosomiasis
B) Trichomoniasis
C) Coccidiosis
D) Gummosis
  • 16. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Saprophytic nutrition
B) Parasitic nutrition
C) Holozoic nutrition
D) Holophytic nutrition
  • 17. Which of the following best defines the conservation of natural resources?
A) The disposal of waste materials in the environment.
B) The extraction and exploitation of non-renewable resources.
C) The depletion of renewable resources for human use.
D) The preservation and sustainable use of natural resources.
  • 18. Which agencies are responsible for the conservation of soil, water, animals, and forests?
A) Environmental Protection Agency (EPA).
B) United Nations Educational, Scientific and Cultural Organization (UNESCO).
C) International Space Agency (ISA).
D) World Health Organization (WHO)
  • 19. What are some problems associated with conservation?
A) Lack of public awareness and participation
B) Excessive funding and resources allocated to conservation efforts
C) Extinction of species due to overprotection
D) Increased pollution levels in protected areas.
  • 20. What are the benefits of conservation?
A) Decreased biodiversity and ecosystem stability.
B) Sustainable use of resources and preservation of natural habitats.
C) Increased pollution and habitat destruction.
D) Accelerated climate change and global warming.
  • 21. In ecology, what does "tolerance" refer to?
    .
A) The ability of organisms to withstand extreme temperatures
B) The extent to which organisms can reproduce successfully.
C) The acceptance of diverse cultural practices within a community
D) The capacity of organisms to adapt to environmental stressors.
  • 22. What is the concept of the minimum and maximum range of tolerance?
A) The range of temperatures where organisms can survive but not thrive.
B) The range of temperatures where organisms cannot survive.
C) The range of temperatures where organisms experience minimal stress.
D) b) The range of temperatures where organisms can reproduce effectively.
  • 23. What does "geographic range" refer to?
A) The range of latitudes where a species can be found.
B) b) The number of species present in a given geographic location. c) The range of latitudes where a species can be found. d) The migratory pattern of organisms across continents.
C) The total land area covered by a particular organism or species.
D) The number of species present in a given geographic location.
  • 24. What is adaptation in living organisms?
A) The adjustment of organisms to their environmental conditions.
B) The process of evolution through natural selection.
C) The interdependence of organisms within an ecosystem.
D) The ability of organisms to change their habitat
  • 25. How does the availability of water affect adaptive modifications in organisms?
A) It influences the development of specialized structures or behaviors.
B) It limits the growth of populations
C) It accelerates evolutionary processes
D) It disrupts the genetic diversity of species.
  • 26. Which of the following structural adaptations is characteristic of fish?
A) Strong jaws for hunting.
B) Gills for respiration
C) Scales for protection
D) Wings for flight
  • 27. Which structural adaptation is typical of toads?
A) Poison glands for defense.
B) Shells for protection
C) Long tongues for catching prey.
D) Suction cup-like toes for climbing
  • 28. What is a structural adaptation observed in lizards?
A) Camouflage for blending with the surroundings.
B) Wings for flying.
C) Large ears for enhanced hearing.
D) Pouches for carrying offspring.
  • 29. Which of the following structural adaptations is seen in prawns?
A) Suction cups for attaching to surfaces.
B) Feathers for insulation
C) Compound eyes for a wide field of vision.
D) Poisonous stingers for defense.
  • 30. What are the sources, causes, and effects of air pollution?
A) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
B) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
C) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
D) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
  • 31. How can water pollution be controlled?
A) By implementing proper waste treatment and management.
B) By reducing carbon dioxide emissions.
C) By promoting deforestation for agricultural purposes.
D) By using plastic extensively for packaging.
  • 32. What measures can be taken to control soil pollution?
A) Implementing sustainable farming practices.
B) Increasing the use of chemical fertilizers.
C) Disposing of hazardous waste in landfills.
D) Encouraging deforestation for urban development.
  • 33. How do unicellular organisms and invertebrates reproduce?
A) They do not reproduce.
B) Through both sexual and asexual reproduction.
C) Through sexual reproduction only.
D) Through asexual reproduction only.
  • 34. Which type of reproduction occurs in amoeba?
A) Sexual reproduction.
B) Binary fission
C) Multiple fission.
D) Asexual reproduction
  • 35. How does Paramecium reproduce?
A) Through binary fission
B) Through multiple fission
C) Through sexual reproduction
D) Through asexual reproduction.
  • 36. Which type of reproduction is observed in earthworms?
A) Asexual reproduction
B) Sexual reproduction.
C) Binary fission
D) Multiple fission.
  • 37. Which of the following are examples of renewable resources that need to be conserved?
A) Plastic and synthetic materials.
B) Water and air.
C) Fossil fuels and minerals
D) Landfills and waste dumps.
  • 38. How can we ensure conservation of natural resources?
A) By overexploiting resources to meet increasing demands
B) By using resources efficiently and promoting sustainable practices.
C) By relying solely on technological advancements to replace resources.
D) By ignoring the impact of human activities on the environment.
  • 39. What is a structural adaptation seen in tadpoles?
A) Legs for hopping on land.
B) Gills for respiration
C) Webbed feet for swimming
D) Lungs for breathing in water
  • 40. How does reproduction take place in houseflies?
A) Parthenogenesis
B) Binary fission
C) Internal fertilization
D) External fertilization
  • 41. What is the method of reproduction in snails?
A) Internal fertilization - lay eggs
B) Parthenogenesis
C) Binary fission
D) External fertilization
  • 42. Which of the following is a disease of the liver?
A) Pneumonia
B) Cirrhosis
C) Malaria
D) Osteoporosis
  • 43. One of the following is not a factor that affects population.
A) Competition
B) Heat
C) Adaptation
D) Water
  • 44. One fo the following is not an abiotic factor.
A) Competition
B) Edaphic
C) Topographic
D) Chemical
  • 45. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Pooter
B) Baermann funnel
C) Hydrophotometer
D) Secchi disc
  • 46. ............ Is used to measure pressure.
A) Colorimeter
B) Photometer
C) Hygrometer
D) Barometer
  • 47. The feeding level in a food chain or food web is known as --------.
A) Pyramid of number
B) Pyramid of energy
C) Trophic level
D) Food chain
  • 48. The diagrammatic representation of the food chain in which producers form the base and the carnivores form the apex is called ...........
A) Pyramid of energy
B) Pyramid
C) Pyramid of number
D) Dome
  • 49. Energy flow is ------------.
A) Cyclic
B) Undirectional
C) Directional
D) Rotational
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Least
B) Best
C) Most
D) Less
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