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) Bacteria aiding in digestion
C) Bacteria causing pneumonia
D) Fungi causing athlete's foot
  • 2. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Genetic inheritance
B) Airborne
C) Vector-borne
D) Waterborne
  • 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) All of the above
B) Skin rash
C) Fatigue
D) Persistent cough
  • 5. The maintenance of good health involves:
A) All of the above
B) Adequate sleep
C) Regular exercise
D) Proper nutrition
  • 6. Which organization is responsible for coordinating international public health efforts?
A) NMA (National Medical Association)
B) UNICEF (United Nations Children's Fund)
C) WHO (World Health Organization)
D) Red Cross Society
  • 7. Autotrophs are organisms that:
A) Produce their own food
B) None of the above
C) Break down dead organic matter
D) Depend on other organisms for food
  • 8. Heterotrophs obtain their food by:
A) Consuming other organisms
B) Decomposing organic matter
C) Chemosynthesis
D) Photosynthesis
  • 9. Which of the following is an example of a vector?
A) Fungi causing athlete's foot
B) Virus causing the common cold
C) Mosquito transmitting malaria
D) Bacteria causing food poisoning
  • 10. Which of the following is NOT a way to control vectors?
A) Vaccination
B) Use of insecticides
C) Use of bed nets
D) Elimination of breeding sites
  • 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) Providing food for other organisms
D) Breaking down dead organic matter
  • 13. In the laboratory, turbidity can be measured with a ..............
A) Spectrophotometer
B) Geiger muller counter
C) Turbidometer
D) Speedometry
  • 14. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antigens
B) Antibodies
C) Vectors
D) Pathogens
  • 15. Animal diseases caused by protozoa are the following except ......
A) Trichomoniasis
B) Gummosis
C) Trypanosomiasis
D) Coccidiosis
  • 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 extraction and exploitation of non-renewable resources.
B) The depletion of renewable resources for human use.
C) The disposal of waste materials in the environment.
D) The preservation and sustainable use of natural resources.
  • 18. Which agencies are responsible for the conservation of soil, water, animals, and forests?
A) Environmental Protection Agency (EPA).
B) United Nations Educational, Scientific and Cultural Organization (UNESCO).
C) International Space Agency (ISA).
D) World Health Organization (WHO)
  • 19. What are some problems associated with conservation?
A) Extinction of species due to overprotection
B) Lack of public awareness and participation
C) Increased pollution levels in protected areas.
D) Excessive funding and resources allocated to conservation efforts
  • 20. What are the benefits of conservation?
A) Decreased biodiversity and ecosystem stability.
B) Increased pollution and habitat destruction.
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 capacity of organisms to adapt to environmental stressors.
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) 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 number of species present in a given geographic location.
  • 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 accelerates evolutionary processes
B) It influences the development of specialized structures or behaviors.
C) It disrupts the genetic diversity of species.
D) It limits the growth of populations
  • 26. Which of the following structural adaptations is characteristic of fish?
A) Wings for flight
B) Gills for respiration
C) Scales for protection
D) Strong jaws for hunting.
  • 27. Which structural adaptation is typical of toads?
A) Poison glands for defense.
B) Shells for protection
C) Suction cup-like toes for climbing
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: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
B) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
C) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
D) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
  • 31. How can water pollution be controlled?
A) By reducing carbon dioxide emissions.
B) By using plastic extensively for packaging.
C) By implementing proper waste treatment and management.
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 both sexual and asexual reproduction.
B) Through asexual reproduction only.
C) They do not reproduce.
D) Through sexual reproduction only.
  • 34. Which type of reproduction occurs in amoeba?
A) Multiple fission.
B) Binary fission
C) Asexual reproduction
D) Sexual reproduction.
  • 35. How does Paramecium reproduce?
A) Through multiple fission
B) Through binary fission
C) Through asexual reproduction.
D) Through sexual reproduction
  • 36. Which type of reproduction is observed in earthworms?
A) Binary fission
B) Multiple fission.
C) Sexual reproduction.
D) Asexual reproduction
  • 37. Which of the following are examples of renewable resources that need to be conserved?
A) Plastic and synthetic materials.
B) Landfills and waste dumps.
C) Fossil fuels and minerals
D) Water and air.
  • 38. How can we ensure conservation of natural resources?
A) By relying solely on technological advancements to replace resources.
B) By ignoring the impact of human activities on the environment.
C) By overexploiting resources to meet increasing demands
D) By using resources efficiently and promoting sustainable practices.
  • 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) External fertilization
D) Parthenogenesis
  • 42. Which of the following is a disease of the liver?
A) Malaria
B) Cirrhosis
C) Osteoporosis
D) Pneumonia
  • 43. One of the following is not a factor that affects population.
A) Competition
B) Water
C) Heat
D) Adaptation
  • 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) Baermann funnel
B) Hydrophotometer
C) Secchi disc
D) Pooter
  • 46. ............ Is used to measure pressure.
A) Photometer
B) Barometer
C) Hygrometer
D) Colorimeter
  • 47. The feeding level in a food chain or food web is known as --------.
A) Pyramid of energy
B) Food chain
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) Pyramid of number
B) Dome
C) Pyramid
D) Pyramid of energy
  • 49. Energy flow is ------------.
A) Rotational
B) Cyclic
C) Undirectional
D) Directional
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Best
B) Less
C) Most
D) Least
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