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 causing pneumonia
C) Bacteria aiding in digestion
D) Fungi causing athlete's foot
  • 2. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Airborne
B) Waterborne
C) Genetic inheritance
D) Vector-borne
  • 3. HIV stands for:
A) Human Intestinal Virus
B) Human Immunodeficiency Virus
C) Highly Infectious Virus
D) Human Influenza Virus
  • 4. Which of the following is a symptom of HIV?
A) Skin rash
B) Persistent cough
C) All of the above
D) Fatigue
  • 5. The maintenance of good health involves:
A) Proper nutrition
B) Adequate sleep
C) Regular exercise
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) Depend on other organisms for food
B) Produce their own food
C) Break down dead organic matter
D) None of the above
  • 8. Heterotrophs obtain their food by:
A) Chemosynthesis
B) Decomposing organic matter
C) Consuming other organisms
D) Photosynthesis
  • 9. Which of the following is an example of a vector?
A) Fungi causing athlete's foot
B) Mosquito transmitting malaria
C) Virus causing the common cold
D) Bacteria causing food poisoning
  • 10. Which of the following is NOT a way to control vectors?
A) Elimination of breeding sites
B) Use of insecticides
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) Blood donation and transfusion services
C) Conducting medical research
D) Promoting health education
  • 12. Decomposers play a crucial role in ecosystems by:
A) Producing oxygen through photosynthesis
B) None of the above
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) Speedometry
C) Turbidometer
D) Geiger muller counter
  • 14. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antibodies
B) Pathogens
C) Vectors
D) Antigens
  • 15. Animal diseases caused by protozoa are the following except ......
A) Gummosis
B) Trypanosomiasis
C) Coccidiosis
D) Trichomoniasis
  • 16. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Parasitic nutrition
B) Saprophytic nutrition
C) Holozoic nutrition
D) Holophytic 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 preservation and sustainable use of natural 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) Environmental Protection Agency (EPA).
B) International Space Agency (ISA).
C) World Health Organization (WHO)
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) Excessive funding and resources allocated to conservation efforts
C) Increased pollution levels in protected areas.
D) Extinction of species due to overprotection
  • 20. What are the benefits of conservation?
A) Sustainable use of resources and preservation of natural habitats.
B) Increased pollution and habitat destruction.
C) Accelerated climate change and global warming.
D) Decreased biodiversity and ecosystem stability.
  • 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 can survive but not thrive.
B) The range of temperatures where organisms experience minimal stress.
C) The range of temperatures where organisms cannot survive.
D) b) The range of temperatures where organisms can reproduce effectively.
  • 23. What does "geographic range" refer to?
A) The total land area covered by a particular organism or species.
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 range of latitudes where a species can be found.
  • 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 interdependence of organisms within an ecosystem.
D) The process of evolution through natural selection.
  • 25. How does the availability of water affect adaptive modifications in organisms?
A) It accelerates evolutionary processes
B) It limits the growth of populations
C) It influences the development of specialized structures or behaviors.
D) It disrupts the genetic diversity of species.
  • 26. Which of the following structural adaptations is characteristic of fish?
A) Wings for flight
B) Scales for protection
C) Gills for respiration
D) Strong jaws for hunting.
  • 27. Which structural adaptation is typical of toads?
A) Poison glands for defense.
B) Long tongues for catching prey.
C) Suction cup-like toes for climbing
D) Shells for protection
  • 28. What is a structural adaptation observed in lizards?
A) Wings for flying.
B) Pouches for carrying offspring.
C) Large ears for enhanced hearing.
D) Camouflage for blending with the surroundings.
  • 29. Which of the following structural adaptations is seen in prawns?
A) Compound eyes for a wide field of vision.
B) Suction cups for attaching to surfaces.
C) Poisonous stingers for defense.
D) Feathers for insulation
  • 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: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
C) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
D) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
  • 31. How can water pollution be controlled?
A) By reducing carbon dioxide emissions.
B) By promoting deforestation for agricultural purposes.
C) By using plastic extensively for packaging.
D) By implementing proper waste treatment and management.
  • 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) Implementing sustainable farming practices.
D) Encouraging deforestation for urban development.
  • 33. How do unicellular organisms and invertebrates reproduce?
A) They do not reproduce.
B) Through both sexual and asexual reproduction.
C) Through asexual reproduction only.
D) Through sexual reproduction only.
  • 34. Which type of reproduction occurs in amoeba?
A) Binary fission
B) Multiple fission.
C) Asexual reproduction
D) Sexual reproduction.
  • 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) Binary fission
B) Asexual reproduction
C) Multiple fission.
D) Sexual reproduction.
  • 37. Which of the following are examples of renewable resources that need to be conserved?
A) Fossil fuels and minerals
B) Landfills and waste dumps.
C) Water and air.
D) Plastic and synthetic materials.
  • 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) Legs for hopping on land.
B) Webbed feet for swimming
C) Gills for respiration
D) Lungs for breathing in water
  • 40. How does reproduction take place in houseflies?
A) Binary fission
B) Internal fertilization
C) Parthenogenesis
D) External 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) Pneumonia
D) Malaria
  • 43. One of the following is not a factor that affects population.
A) Heat
B) Adaptation
C) Water
D) Competition
  • 44. One fo the following is not an abiotic factor.
A) Topographic
B) Edaphic
C) Chemical
D) Competition
  • 45. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Hydrophotometer
B) Secchi disc
C) Baermann funnel
D) Pooter
  • 46. ............ Is used to measure pressure.
A) Photometer
B) Colorimeter
C) Barometer
D) Hygrometer
  • 47. The feeding level in a food chain or food web is known as --------.
A) Pyramid of energy
B) Trophic level
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) Dome
D) Pyramid of number
  • 49. Energy flow is ------------.
A) Directional
B) Rotational
C) Undirectional
D) Cyclic
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Least
B) Most
C) Less
D) Best
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