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) Genetic inheritance
B) Waterborne
C) Vector-borne
D) Airborne
  • 3. HIV stands for:
A) Human Intestinal Virus
B) Highly Infectious Virus
C) Human Influenza Virus
D) Human Immunodeficiency Virus
  • 4. Which of the following is a symptom of HIV?
A) All of the above
B) Persistent cough
C) Skin rash
D) Fatigue
  • 5. The maintenance of good health involves:
A) Regular exercise
B) Adequate sleep
C) Proper nutrition
D) All of the above
  • 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) 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) Photosynthesis
B) Chemosynthesis
C) Consuming other organisms
D) Decomposing organic matter
  • 9. Which of the following is an example of a vector?
A) Bacteria causing food poisoning
B) Virus causing the common cold
C) Fungi causing athlete's foot
D) Mosquito transmitting malaria
  • 10. Which of the following is NOT a way to control vectors?
A) Vaccination
B) Use of bed nets
C) Elimination of breeding sites
D) Use of insecticides
  • 11. Which of the following is NOT a role of the Red Cross Society?
A) Promoting health education
B) Blood donation and transfusion services
C) Providing humanitarian aid during disasters
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) Spectrophotometer
C) Turbidometer
D) Speedometry
  • 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) Coccidiosis
B) Trypanosomiasis
C) Trichomoniasis
D) Gummosis
  • 16. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Holozoic nutrition
B) Saprophytic 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 extraction and exploitation of non-renewable resources.
C) The disposal of waste materials in the environment.
D) The depletion of renewable resources for human use.
  • 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) World Health Organization (WHO)
D) Environmental Protection Agency (EPA).
  • 19. What are some problems associated with conservation?
A) Excessive funding and resources allocated to conservation efforts
B) Increased pollution levels in protected areas.
C) Extinction of species due to overprotection
D) Lack of public awareness and participation
  • 20. What are the benefits of conservation?
A) Increased pollution and habitat destruction.
B) Sustainable use of resources and preservation of natural habitats.
C) Decreased biodiversity and ecosystem stability.
D) Accelerated climate change and global warming.
  • 21. In ecology, what does "tolerance" refer to?
    .
A) The ability of organisms to withstand extreme temperatures
B) The extent to which organisms can reproduce successfully.
C) The acceptance of diverse cultural practices within a community
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 experience minimal stress.
B) The range of temperatures where organisms cannot survive.
C) The range of temperatures where organisms can survive but not thrive.
D) b) The range of temperatures where organisms can reproduce effectively.
  • 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 interdependence of organisms within an ecosystem.
B) The ability of organisms to change their habitat
C) The adjustment of organisms to their environmental conditions.
D) The process of evolution through natural selection.
  • 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 limits the growth of populations
D) It accelerates evolutionary processes
  • 26. Which of the following structural adaptations is characteristic of fish?
A) Strong jaws for hunting.
B) Wings for flight
C) Gills for respiration
D) Scales for protection
  • 27. Which structural adaptation is typical of toads?
A) Long tongues for catching prey.
B) Suction cup-like toes for climbing
C) Poison glands for defense.
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) Poisonous stingers for defense.
B) Suction cups for attaching to surfaces.
C) Feathers for insulation
D) Compound eyes for a wide field of vision.
  • 30. What are the sources, causes, and effects of air pollution?
A) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
B) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
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 promoting deforestation for agricultural purposes.
B) By reducing carbon dioxide emissions.
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) Encouraging deforestation for urban development.
B) Disposing of hazardous waste in landfills.
C) Increasing the use of chemical fertilizers.
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) Sexual reproduction.
C) Binary fission
D) Multiple fission.
  • 35. How does Paramecium reproduce?
A) Through sexual reproduction
B) Through binary fission
C) Through multiple fission
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) Plastic and synthetic materials.
B) Water and air.
C) Landfills and waste dumps.
D) Fossil fuels and minerals
  • 38. How can we ensure conservation of natural resources?
A) By overexploiting resources to meet increasing demands
B) By ignoring the impact of human activities on the environment.
C) By using resources efficiently and promoting sustainable practices.
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) Legs for hopping on land.
C) Gills for respiration
D) Webbed feet for swimming
  • 40. How does reproduction take place in houseflies?
A) Parthenogenesis
B) Internal fertilization
C) External fertilization
D) Binary fission
  • 41. What is the method of reproduction in snails?
A) Internal fertilization - lay eggs
B) Parthenogenesis
C) Binary fission
D) External fertilization
  • 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) Water
C) Heat
D) Competition
  • 44. One fo the following is not an abiotic factor.
A) Edaphic
B) Chemical
C) Competition
D) Topographic
  • 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) Hygrometer
B) Colorimeter
C) Barometer
D) Photometer
  • 47. The feeding level in a food chain or food web is known as --------.
A) Pyramid of energy
B) Pyramid of number
C) Trophic level
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 number
D) Pyramid of energy
  • 49. Energy flow is ------------.
A) Rotational
B) Directional
C) Cyclic
D) Undirectional
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Most
B) Best
C) Least
D) Less
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