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