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