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