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