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) Virus causing the flu
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) Waterborne
C) Airborne
D) Vector-borne
  • 3. HIV stands for:
A) Human Influenza Virus
B) Highly Infectious Virus
C) Human Immunodeficiency Virus
D) Human Intestinal Virus
  • 4. Which of the following is a symptom of HIV?
A) All of the above
B) Fatigue
C) Persistent cough
D) Skin rash
  • 5. The maintenance of good health involves:
A) Proper nutrition
B) Regular exercise
C) All of the above
D) Adequate sleep
  • 6. Which organization is responsible for coordinating international public health efforts?
A) WHO (World Health Organization)
B) NMA (National Medical Association)
C) Red Cross Society
D) UNICEF (United Nations Children's Fund)
  • 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) Fungi causing athlete's foot
B) Mosquito transmitting malaria
C) Bacteria causing food poisoning
D) Virus causing the common cold
  • 10. Which of the following is NOT a way to control vectors?
A) Vaccination
B) Use of bed nets
C) Use of insecticides
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) Conducting medical research
C) Promoting health education
D) Blood donation and transfusion services
  • 12. Decomposers play a crucial role in ecosystems by:
A) Producing oxygen through photosynthesis
B) Providing food for other organisms
C) Breaking down dead organic matter
D) None of the above
  • 13. In the laboratory, turbidity can be measured with a ..............
A) Spectrophotometer
B) Turbidometer
C) Geiger muller counter
D) Speedometry
  • 14. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Pathogens
B) Vectors
C) Antigens
D) Antibodies
  • 15. Animal diseases caused by protozoa are the following except ......
A) Trypanosomiasis
B) Trichomoniasis
C) Coccidiosis
D) Gummosis
  • 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 depletion of renewable resources for human use.
B) The extraction and exploitation of non-renewable resources.
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) World Health Organization (WHO)
B) International Space Agency (ISA).
C) Environmental Protection Agency (EPA).
D) United Nations Educational, Scientific and Cultural Organization (UNESCO).
  • 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) Accelerated climate change and global warming.
B) Decreased biodiversity and ecosystem stability.
C) Sustainable use of resources and preservation of natural habitats.
D) Increased pollution and habitat destruction.
  • 21. In ecology, what does "tolerance" refer to?
    .
A) The extent to which organisms can reproduce successfully.
B) The ability of organisms to withstand extreme temperatures
C) The capacity of organisms to adapt to environmental stressors.
D) The acceptance of diverse cultural practices within a community
  • 22. What is the concept of the minimum and maximum range of tolerance?
A) The range of temperatures where organisms cannot survive.
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 experience minimal stress.
  • 23. What does "geographic range" refer to?
A) The range of latitudes where a species can be found.
B) The number of species present in a given geographic location.
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 interdependence of organisms within an ecosystem.
B) The ability of organisms to change their habitat
C) The process of evolution through natural selection.
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 limits the growth of populations
C) It accelerates evolutionary processes
D) It influences the development of specialized structures or behaviors.
  • 26. Which of the following structural adaptations is characteristic of fish?
A) Wings for flight
B) Scales for protection
C) Strong jaws for hunting.
D) Gills for respiration
  • 27. Which structural adaptation is typical of toads?
A) Shells for protection
B) Suction cup-like toes for climbing
C) Poison glands for defense.
D) Long tongues for catching prey.
  • 28. What is a structural adaptation observed in lizards?
A) Wings for flying.
B) Large ears for enhanced hearing.
C) Pouches for carrying offspring.
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) Compound eyes for a wide field of vision.
C) Feathers for insulation
D) Poisonous stingers for defense.
  • 30. What are the sources, causes, and effects of air pollution?
A) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
B) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
C) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
D) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
  • 31. How can water pollution be controlled?
A) By promoting deforestation for agricultural purposes.
B) By implementing proper waste treatment and management.
C) By reducing carbon dioxide emissions.
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) Disposing of hazardous waste in landfills.
D) Implementing sustainable farming practices.
  • 33. How do unicellular organisms and invertebrates reproduce?
A) Through sexual reproduction only.
B) They do not reproduce.
C) Through both sexual and asexual reproduction.
D) Through asexual reproduction only.
  • 34. Which type of reproduction occurs in amoeba?
A) Multiple fission.
B) Asexual reproduction
C) Binary fission
D) Sexual reproduction.
  • 35. How does Paramecium reproduce?
A) Through multiple fission
B) Through sexual reproduction
C) Through asexual reproduction.
D) Through binary fission
  • 36. Which type of reproduction is observed in earthworms?
A) Sexual reproduction.
B) Binary fission
C) Asexual reproduction
D) Multiple fission.
  • 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 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) Lungs for breathing in water
C) Gills for respiration
D) Webbed feet for swimming
  • 40. How does reproduction take place in houseflies?
A) Parthenogenesis
B) External fertilization
C) Binary fission
D) Internal fertilization
  • 41. What is the method of reproduction in snails?
A) Internal fertilization - lay eggs
B) External fertilization
C) Parthenogenesis
D) Binary fission
  • 42. Which of the following is a disease of the liver?
A) Osteoporosis
B) Cirrhosis
C) Malaria
D) Pneumonia
  • 43. One of the following is not a factor that affects population.
A) Water
B) Heat
C) Competition
D) Adaptation
  • 44. One fo the following is not an abiotic factor.
A) Chemical
B) Competition
C) Edaphic
D) Topographic
  • 45. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Hydrophotometer
B) Baermann funnel
C) Pooter
D) Secchi disc
  • 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) Food chain
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
B) Dome
C) Pyramid of number
D) Pyramid of energy
  • 49. Energy flow is ------------.
A) Rotational
B) Directional
C) Undirectional
D) Cyclic
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Less
B) Most
C) Least
D) Best
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