SS 1 AIC Biology Exam Questions - 3rd Term 2022/23
  • 1. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Saprophytic nutrition
B) Parasitic nutrition
C) Holozoic nutrition
D) Holophytic nutrition
  • 2. The mosquito possesses a piercing mouth part called ----
A) Proboscis
B) Labrum
C) Maxillae
D) Sponge
  • 3. Filter feeding is common among --------
A) Pitcher- plant
B) Aquatic organisms
C) Mosquito
D) Rhizopus
  • 4. The study of an individual organism or a single species of organism and its environment is known as ......
A) Synecology
B) Biome
C) Ecology
D) Autecology
  • 5. Trapping and absorbing mechanisms are common among the ------------
A) Microphagous feeders
B) Mosquito larva
C) Insectivorous plants
D) Filter feeders
  • 6. The reaction known as nitrification involves the conversion of ammonium compounds first into nitrite by nitrifying bacteria called ........
A) Clostridium
B) Azotobacter
C) Nitrobacter
D) Nitrosomonas
  • 7. Protozoa belong to the group of organisms called _____.
A) Blue-green alga
B) Cyanophyta
C) Pyrrophyta
D) Protista
  • 8. Amoeba moves by the use of false leg called _______.
A) pseudopodia
B) Cilia
C) Flagella
D) Pellicle
  • 9. Which of the following is not a characteristic of dicotyledonous plants?
A) The vascular bundles of the stem are scattered
B) Their floral parts exists in groups of four or five
C) They usually undergo secondary growth
D) They have tap root
  • 10. NADP means --------.
A) Nicotinamide adenine dinucleotide phosphate
B) Nicotinamide adenine dinucleotide phosphine
C) Nicotinamine adenine dinucleotine phosphate
D) Nicotine adenine dinucleotide phosphate
  • 11. Which of the following best defines the conservation of natural resources?
A) The preservation and sustainable use of natural resources.
B) The disposal of waste materials in the environment.
C) The depletion of renewable resources for human use.
D) The extraction and exploitation of non-renewable resources.
  • 12. 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).
  • 13. What are some problems associated with conservation?
A) Increased pollution levels in protected areas.
B) Excessive funding and resources allocated to conservation efforts
C) Extinction of species due to overprotection
D) Lack of public awareness and participation
  • 14. What are the benefits of conservation?
A) Decreased biodiversity and ecosystem stability.
B) Accelerated climate change and global warming.
C) Sustainable use of resources and preservation of natural habitats.
D) Increased pollution and habitat destruction.
  • 15. In ecology, what does "tolerance" refer to?
    .
A) The ability of organisms to withstand extreme temperatures
B) The acceptance of diverse cultural practices within a community
C) The capacity of organisms to adapt to environmental stressors.
D) The extent to which organisms can reproduce successfully.
  • 16. What is the concept of the minimum and maximum range of tolerance?
A) The range of temperatures where organisms experience minimal stress.
B) b) The range of temperatures where organisms can reproduce effectively.
C) The range of temperatures where organisms cannot survive.
D) The range of temperatures where organisms can survive but not thrive.
  • 17. What does "geographic range" refer to?
A) The range of latitudes where a species can be found.
B) The total land area covered by a particular organism or species.
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.
  • 18. What is adaptation in living organisms?
A) The interdependence of organisms within an ecosystem.
B) The adjustment of organisms to their environmental conditions.
C) The ability of organisms to change their habitat
D) The process of evolution through natural selection.
  • 19. 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
  • 20. Which of the following structural adaptations is characteristic of fish?
A) Scales for protection
B) Strong jaws for hunting.
C) Wings for flight
D) Gills for respiration
  • 21. Which structural adaptation is typical of toads?
A) Poison glands for defense.
B) Suction cup-like toes for climbing
C) Shells for protection
D) Long tongues for catching prey.
  • 22. What is a structural adaptation observed in lizards?
A) Pouches for carrying offspring.
B) Large ears for enhanced hearing.
C) Wings for flying.
D) Camouflage for blending with the surroundings.
  • 23. Which of the following structural adaptations is seen in prawns?
A) Suction cups for attaching to surfaces.
B) Poisonous stingers for defense.
C) Compound eyes for a wide field of vision.
D) Feathers for insulation
  • 24. What are the sources, causes, and effects of air pollution?
A) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
B) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
C) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
D) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
  • 25. How can water pollution be controlled?
A) By implementing proper waste treatment and management.
B) By reducing carbon dioxide emissions.
C) By promoting deforestation for agricultural purposes.
D) By using plastic extensively for packaging.
  • 26. What measures can be taken to control soil pollution?
A) Implementing sustainable farming practices.
B) Increasing the use of chemical fertilizers.
C) Disposing of hazardous waste in landfills.
D) Encouraging deforestation for urban development.
  • 27. How do unicellular organisms and invertebrates reproduce?
A) Through sexual reproduction only.
B) Through asexual reproduction only.
C) They do not reproduce.
D) Through both sexual and asexual reproduction.
  • 28. Which type of reproduction occurs in amoeba?
A) Binary fission
B) Asexual reproduction
C) Sexual reproduction.
D) Multiple fission.
  • 29. How does Paramecium reproduce?
A) Through binary fission
B) Through asexual reproduction.
C) Through multiple fission
D) Through sexual reproduction
  • 30. Which type of reproduction is observed in earthworms?
A) Sexual reproduction.
B) Binary fission
C) Multiple fission.
D) Asexual reproduction
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