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) Holophytic nutrition
B) Holozoic nutrition
C) Saprophytic nutrition
D) Parasitic nutrition
  • 2. The mosquito possesses a piercing mouth part called ----
A) Sponge
B) Maxillae
C) Proboscis
D) Labrum
  • 3. Filter feeding is common among --------
A) Rhizopus
B) Pitcher- plant
C) Mosquito
D) Aquatic organisms
  • 4. The study of an individual organism or a single species of organism and its environment is known as ......
A) Ecology
B) Biome
C) Synecology
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) Nitrobacter
B) Azotobacter
C) Nitrosomonas
D) Clostridium
  • 7. Protozoa belong to the group of organisms called _____.
A) Protista
B) Cyanophyta
C) Blue-green alga
D) Pyrrophyta
  • 8. Amoeba moves by the use of false leg called _______.
A) pseudopodia
B) Flagella
C) Pellicle
D) Cilia
  • 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 have tap root
D) They usually undergo secondary growth
  • 10. NADP means --------.
A) Nicotinamide adenine dinucleotide phosphine
B) Nicotinamide adenine dinucleotide phosphate
C) Nicotinamine adenine dinucleotine phosphate
D) Nicotine adenine dinucleotide phosphate
  • 11. 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 preservation and sustainable use of natural resources.
D) The disposal of waste materials in the environment.
  • 12. Which agencies are responsible for the conservation of soil, water, animals, and forests?
A) Environmental Protection Agency (EPA).
B) International Space Agency (ISA).
C) United Nations Educational, Scientific and Cultural Organization (UNESCO).
D) World Health Organization (WHO)
  • 13. What are some problems associated with conservation?
A) Excessive funding and resources allocated to conservation efforts
B) Increased pollution levels in protected areas.
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) Increased pollution and habitat destruction.
C) Sustainable use of resources and preservation of natural habitats.
D) Accelerated climate change and global warming.
  • 15. In ecology, what does "tolerance" refer to?
    .
A) The capacity of organisms to adapt to environmental stressors.
B) The ability of organisms to withstand extreme temperatures
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) b) The range of temperatures where organisms can reproduce effectively.
B) The range of temperatures where organisms experience minimal stress.
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 number of species present in a given geographic location.
B) The range of latitudes where a species can be found.
C) The total land area covered by a particular organism or species.
D) 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.
  • 18. What is adaptation in living organisms?
A) The adjustment of organisms to their environmental conditions.
B) The interdependence of organisms within an ecosystem.
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 limits the growth of populations
B) It influences the development of specialized structures or behaviors.
C) It accelerates evolutionary processes
D) It disrupts the genetic diversity of species.
  • 20. Which of the following structural adaptations is characteristic of fish?
A) Wings for flight
B) Strong jaws for hunting.
C) Scales for protection
D) Gills for respiration
  • 21. Which structural adaptation is typical of toads?
A) Shells for protection
B) Poison glands for defense.
C) Long tongues for catching prey.
D) Suction cup-like toes for climbing
  • 22. What is a structural adaptation observed in lizards?
A) Large ears for enhanced hearing.
B) Camouflage for blending with the surroundings.
C) Wings for flying.
D) Pouches for carrying offspring.
  • 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) Suction cups for attaching to surfaces.
D) Feathers for insulation
  • 24. What are the sources, causes, and effects of air pollution?
A) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
B) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
C) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
D) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
  • 25. How can water pollution be controlled?
A) By promoting deforestation for agricultural purposes.
B) By reducing carbon dioxide emissions.
C) By implementing proper waste treatment and management.
D) By using plastic extensively for packaging.
  • 26. What measures can be taken to control soil pollution?
A) Increasing the use of chemical fertilizers.
B) Encouraging deforestation for urban development.
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) Asexual reproduction
B) Binary fission
C) Sexual reproduction.
D) Multiple fission.
  • 29. How does Paramecium reproduce?
A) Through multiple fission
B) Through binary fission
C) Through asexual reproduction.
D) Through sexual reproduction
  • 30. Which type of reproduction is observed in earthworms?
A) Multiple fission.
B) Sexual reproduction.
C) Binary fission
D) Asexual reproduction
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