AIC SS 1 Biology Revision Test 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Fungi causing athlete's foot
B) Bacteria causing pneumonia
C) Bacteria aiding in digestion
D) Virus causing the flu
  • 2. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Vector-borne
B) Airborne
C) Waterborne
D) Genetic inheritance
  • 3. HIV stands for:
A) Human Immunodeficiency Virus
B) Human Intestinal Virus
C) Human Influenza Virus
D) Highly Infectious Virus
  • 4. Which of the following is a symptom of HIV?
A) Persistent cough
B) Fatigue
C) All of the above
D) Skin rash
  • 5. The maintenance of good health involves:
A) All of the above
B) Proper nutrition
C) Regular exercise
D) Adequate sleep
  • 6. Which organization is responsible for coordinating international public health efforts?
A) UNICEF (United Nations Children's Fund)
B) WHO (World Health Organization)
C) NMA (National Medical Association)
D) Red Cross Society
  • 7. Autotrophs are organisms that:
A) Break down dead organic matter
B) Produce their own food
C) Depend on other organisms for food
D) None of the above
  • 8. Heterotrophs obtain their food by:
A) Photosynthesis
B) Consuming other organisms
C) Chemosynthesis
D) Decomposing organic matter
  • 9. Which of the following is an example of a vector?
A) Virus causing the common cold
B) Bacteria causing food poisoning
C) Mosquito transmitting malaria
D) Fungi causing athlete's foot
  • 10. Which of the following is NOT a way to control vectors?
A) Vaccination
B) Elimination of breeding sites
C) Use of insecticides
D) Use of bed nets
  • 11. Which of the following is NOT a role of the Red Cross Society?
A) Providing humanitarian aid during disasters
B) Blood donation and transfusion services
C) Promoting health education
D) Conducting medical research
  • 12. Decomposers play a crucial role in ecosystems by:
A) None of the above
B) Breaking down dead organic matter
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) Turbidometer
C) Speedometry
D) Spectrophotometer
  • 14. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antibodies
B) Pathogens
C) Antigens
D) Vectors
  • 15. Animal diseases caused by protozoa are the following except ......
A) Trypanosomiasis
B) Gummosis
C) Trichomoniasis
D) Coccidiosis
  • 16. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Saprophytic nutrition
B) Holozoic nutrition
C) Holophytic nutrition
D) Parasitic 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 extraction and exploitation of non-renewable resources.
D) The disposal of waste materials in the environment.
  • 18. Which agencies are responsible for the conservation of soil, water, animals, and forests?
A) Environmental Protection Agency (EPA).
B) World Health Organization (WHO)
C) United Nations Educational, Scientific and Cultural Organization (UNESCO).
D) International Space Agency (ISA).
  • 19. What are some problems associated with conservation?
A) Increased pollution levels in protected areas.
B) Lack of public awareness and participation
C) Excessive funding and resources allocated to conservation efforts
D) Extinction of species due to overprotection
  • 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) Increased pollution and habitat destruction.
D) Decreased biodiversity and ecosystem stability.
  • 21. In ecology, what does "tolerance" refer to?
    .
A) The capacity of organisms to adapt to environmental stressors.
B) The acceptance of diverse cultural practices within a community
C) The ability of organisms to withstand extreme temperatures
D) The extent to which organisms can reproduce successfully.
  • 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 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 number of species present in a given geographic location.
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 process of evolution through natural selection.
D) The interdependence of organisms within an ecosystem.
  • 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) Scales for protection
B) Wings for flight
C) Gills for respiration
D) Strong jaws for hunting.
  • 27. Which structural adaptation is typical of toads?
A) Poison glands for defense.
B) Long tongues for catching prey.
C) Suction cup-like toes for climbing
D) Shells for protection
  • 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) Suction cups for attaching to surfaces.
B) Feathers for insulation
C) Poisonous stingers for defense.
D) Compound eyes for a wide field of vision.
  • 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 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) Encouraging deforestation for urban development.
B) Implementing sustainable farming practices.
C) Increasing the use of chemical fertilizers.
D) Disposing of hazardous waste in landfills.
  • 33. How do unicellular organisms and invertebrates reproduce?
A) Through asexual reproduction only.
B) Through sexual reproduction only.
C) They do not reproduce.
D) Through both sexual and asexual reproduction.
  • 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 asexual reproduction.
B) Through sexual reproduction
C) Through multiple fission
D) Through binary fission
  • 36. Which type of reproduction is observed in earthworms?
A) Sexual reproduction.
B) Multiple fission.
C) Binary 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) Landfills and waste dumps.
C) Plastic and synthetic materials.
D) Water and air.
  • 38. How can we ensure conservation of natural resources?
A) By using resources efficiently and promoting sustainable practices.
B) By overexploiting resources to meet increasing demands
C) By ignoring the impact of human activities on the environment.
D) By relying solely on technological advancements to replace resources.
  • 39. What is a structural adaptation seen in tadpoles?
A) Legs for hopping on land.
B) Gills for respiration
C) Lungs for breathing in water
D) Webbed feet for swimming
  • 40. How does reproduction take place in houseflies?
A) External fertilization
B) Parthenogenesis
C) Internal fertilization
D) Binary fission
  • 41. What is the method of reproduction in snails?
A) Binary fission
B) Internal fertilization - lay eggs
C) External fertilization
D) Parthenogenesis
  • 42. Which of the following is a disease of the liver?
A) Cirrhosis
B) Malaria
C) Pneumonia
D) Osteoporosis
  • 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) Edaphic
B) Topographic
C) Competition
D) Chemical
  • 45. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Hydrophotometer
B) Pooter
C) Secchi disc
D) Baermann funnel
  • 46. ............ Is used to measure pressure.
A) Photometer
B) Hygrometer
C) Barometer
D) Colorimeter
  • 47. The feeding level in a food chain or food web is known as --------.
A) Pyramid of number
B) Trophic level
C) Pyramid of energy
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) Dome
B) Pyramid
C) Pyramid of energy
D) Pyramid of number
  • 49. Energy flow is ------------.
A) Undirectional
B) Rotational
C) Cyclic
D) Directional
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Less
B) Most
C) Best
D) Least
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