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