AIC SS 1 Biology Revision Test 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Fungi causing athlete's foot
B) Virus causing the flu
C) Bacteria causing pneumonia
D) Bacteria aiding in digestion
  • 2. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Vector-borne
B) Waterborne
C) Genetic inheritance
D) Airborne
  • 3. HIV stands for:
A) Human Intestinal Virus
B) Highly Infectious Virus
C) Human Immunodeficiency Virus
D) Human Influenza Virus
  • 4. Which of the following is a symptom of HIV?
A) Persistent cough
B) All of the above
C) Skin rash
D) Fatigue
  • 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) Red Cross Society
B) NMA (National Medical Association)
C) WHO (World Health Organization)
D) UNICEF (United Nations Children's Fund)
  • 7. Autotrophs are organisms that:
A) Break down dead organic matter
B) None of the above
C) Produce their own food
D) Depend on other organisms for food
  • 8. Heterotrophs obtain their food by:
A) Photosynthesis
B) Decomposing organic matter
C) Consuming other organisms
D) Chemosynthesis
  • 9. Which of the following is an example of a vector?
A) Fungi causing athlete's foot
B) Bacteria causing food poisoning
C) Virus causing the common cold
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) Conducting medical research
B) Providing humanitarian aid during disasters
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) Breaking down dead organic matter
C) None of the above
D) Providing food for other organisms
  • 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) Pathogens
B) Vectors
C) Antibodies
D) Antigens
  • 15. Animal diseases caused by protozoa are the following except ......
A) Trichomoniasis
B) Trypanosomiasis
C) Gummosis
D) Coccidiosis
  • 16. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Holozoic nutrition
B) Holophytic nutrition
C) Saprophytic 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 depletion of renewable resources for human use.
C) The disposal of waste materials in the environment.
D) The extraction and exploitation of non-renewable resources.
  • 18. Which agencies are responsible for the conservation of soil, water, animals, and forests?
A) World Health Organization (WHO)
B) Environmental Protection Agency (EPA).
C) International Space Agency (ISA).
D) United Nations Educational, Scientific and Cultural Organization (UNESCO).
  • 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) Sustainable use of resources and preservation of natural habitats.
B) Accelerated climate change and global warming.
C) Increased pollution and habitat destruction.
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 range of latitudes where a species can be found.
B) 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.
C) The number of species present in a given geographic location.
D) The total land area covered by a particular organism or species.
  • 24. What is adaptation in living organisms?
A) The adjustment of organisms to their environmental conditions.
B) The process of evolution through natural selection.
C) The interdependence of organisms within an ecosystem.
D) The ability of organisms to change their habitat
  • 25. How does the availability of water affect adaptive modifications in organisms?
A) It influences the development of specialized structures or behaviors.
B) It disrupts the genetic diversity of species.
C) It accelerates evolutionary processes
D) It limits the growth of populations
  • 26. Which of the following structural adaptations is characteristic of fish?
A) Gills for respiration
B) Scales for protection
C) Wings for flight
D) Strong jaws for hunting.
  • 27. Which structural adaptation is typical of toads?
A) Suction cup-like toes for climbing
B) Poison glands for defense.
C) Long tongues for catching prey.
D) Shells for protection
  • 28. What is a structural adaptation observed in lizards?
A) Wings for flying.
B) Camouflage for blending with the surroundings.
C) Pouches for carrying offspring.
D) Large ears for enhanced hearing.
  • 29. Which of the following structural adaptations is seen in prawns?
A) Feathers for insulation
B) Suction cups for attaching to surfaces.
C) Poisonous stingers for defense.
D) Compound eyes for a wide field of vision.
  • 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 implementing proper waste treatment and management.
B) By using plastic extensively for packaging.
C) By promoting deforestation for agricultural purposes.
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) Sexual reproduction.
B) Binary fission
C) Multiple fission.
D) Asexual reproduction
  • 35. How does Paramecium reproduce?
A) Through binary fission
B) Through asexual reproduction.
C) Through sexual reproduction
D) Through multiple 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) Fossil fuels and minerals
B) Plastic and synthetic materials.
C) Water and air.
D) Landfills and waste dumps.
  • 38. How can we ensure conservation of natural resources?
A) By overexploiting resources to meet increasing demands
B) By relying solely on technological advancements to replace resources.
C) By using resources efficiently and promoting sustainable practices.
D) By ignoring the impact of human activities on the environment.
  • 39. What is a structural adaptation seen in tadpoles?
A) Gills for respiration
B) Webbed feet for swimming
C) Legs for hopping on land.
D) Lungs for breathing in water
  • 40. How does reproduction take place in houseflies?
A) Binary fission
B) Parthenogenesis
C) External fertilization
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) Malaria
B) Pneumonia
C) Cirrhosis
D) Osteoporosis
  • 43. One of the following is not a factor that affects population.
A) Heat
B) Water
C) Competition
D) Adaptation
  • 44. One fo the following is not an abiotic factor.
A) Chemical
B) Topographic
C) Edaphic
D) Competition
  • 45. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Secchi disc
B) Hydrophotometer
C) Pooter
D) Baermann funnel
  • 46. ............ Is used to measure pressure.
A) Colorimeter
B) Barometer
C) Hygrometer
D) Photometer
  • 47. The feeding level in a food chain or food web is known as --------.
A) Pyramid of number
B) Food chain
C) Trophic level
D) Pyramid of energy
  • 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 of energy
D) Pyramid
  • 49. Energy flow is ------------.
A) Directional
B) Cyclic
C) Undirectional
D) Rotational
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Most
B) Least
C) Best
D) Less
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