AIC SS 2 Biology Revision Test for 3rd Term 2022/23
  • 1. The major zones of the marine habitat include all except.........
A) Supratidal zone
B) Benthic zone
C) Littoral zone
D) Neptunic zone
  • 2. The excessive growth of plant life or algae in water courses or bodies caused by an increase in organic nutrients or minerals leading to the death of aquatic organisms is called ...........
A) Eutropication
B) Eutriphication
C) Eutrophication
D) Etrophication
  • 3. The following are the processes involved in the formation of urine except.......
A) Hormonal secretion
B) Ultra filteration
C) Glomerulus in the bowman's capsule
D) Selective reabsorption
  • 4. Selective reabsorption occurs in one of the following.
A) Distal tubule
B) Bowman's capsule
C) Urethra
D) Henle's loop
  • 5. Effects of food shortage on the size of a population include the following except.......
A) Competition
B) Increased supply of a particular type of food
C) Decline in the rate of reproduction
D) Emigration
  • 6. Abiotic factors affecting a population include the following except......
A) Space
B) Heat
C) Water
D) Parasites
  • 7. The following are biotic factors affecting a population except......
A) Mortality
B) Competition
C) Light
D) Food
  • 8. A factor which limits the population growth is called .......
A) Balance in nature
B) Limiting factor
C) Environmental resistance
D) Dispersal
  • 9. One of the following is not an importance of family planning to a nation.
A) Prevention of indiscriminate abortion
B) Prevention of population explosion
C) Increased risk of STDs
D) Promotion of maternal and mother's health
  • 10. The organelle used for osmoregulation in unicellular organisms such as amoeba and paramecium is called ..........
A) Cytoplasm
B) Ribosome
C) Endoplasmic reticulum
D) Contractile vacuole
  • 11. The maintenance of a fairly constant internal environment in an organism is known as .........
A) Neutralisation
B) Osmotic pressure balance
C) Concentration gradient
D) Homeostasis
  • 12. One of the following secrets synovial fluid which acts as a shock absorber.
A) Synovial membrane
B) Synovial cavity
C) Cartilage
D) Synovial fluid
  • 13. ------------- joint allows movement in almost all directions
A) Gliding
B) Ball and socket
C) Hinge
D) Pivot
  • 14. Muscles are attached to bones by means of strong whitish cord called ----------
A) Ligament
B) Tonsil
C) Cartilage
D) Tendons
  • 15. One of the following is not a sucking mouth part of animals exhibiting a sucking mechanism
A) Probosics
B) Labella
C) Stylet
D) Scolex
  • 16. One of the following antibodies cause microorganisms to stick together in the body and reduce their pathogenic actions.
A) Agglutinins
B) Precipitins
C) Lysin
D) Antitoxins
  • 17. The following are the characteristics of leucocytes except -------
A) Concave and circular
B) Colourless
C) Nucleated
D) Amoeboid in shape
  • 18. One of the following is not peculiar to the red blood cell
A) Microscopic
B) Old ones are destroyed in the liver
C) Colourless when seen singly
D) Circular and concave
  • 19. The following are parts of the chewing and biting mouth parts except ---------
A) Maxillae
B) Mandibles
C) Probosics
D) Labrum
E) Labium
  • 20. Pulmonary artery is the blood vessel connected to -------------.
A) Left auricle
B) Right ventricle
C) Right auricle
D) Left ventricle
  • 21. What is the main function of the kidney?
A) Regulation of body temperature
B) Digestion of food
C) Filtration of blood
D) Production of hormones
  • 22. Which of the following is a disease of the kidney?
A) Diabetes
B) Asthma
C) Influenza
D) Arthritis
  • 23. What are the effects of kidney diseases on the body?
A) Improved digestion
B) Strengthened immune system
C) Increased blood pressure
D) Enhanced vision
  • 24. Which of the following is a remedy for the effects of kidney diseases?
A) Physical exercise
B) Dialysis
C) Chemotherapy
D) Antibiotics
  • 25. What are the functions of the liver?
A) Production of red blood cells
B) Detoxification of harmful substances
C) Regulation of body temperature
D) Protection of the lungs
  • 26. Which of the following is a disease of the liver?
A) Malaria
B) Cirrhosis
C) Pneumonia
D) Osteoporosis
  • 27. What are the effects of liver diseases on the body?
A) Accelerated wound healing
B) Impaired digestion
C) Increased muscle strength
D) Improved memory
  • 28. Which of the following is a remedy for the effects of liver diseases?
A) Vitamin supplements
B) Liver transplantation
C) Physical therapy
D) Meditation
  • 29. What is the structure and function of the mammalian skin?
A) Vision and hearing
B) Muscle contraction and relaxation
C) Protection and temperature regulation
D) Digestion and absorption
  • 30. Where are the hormonal glands located?
A) Endocrine system
B) Pancreas
C) Lungs
D) Stomach
  • 31. What is the function of hormones?
A) Strengthening of bones
B) Regulation of body functions
C) Production of energy
D) Transmission of nerve impulses
  • 32. What is the effect of over-secretion of hormones?
A) Weight loss
B) Increased blood pressure
C) Decreased heart rate
D) Weakened immune system
  • 33. What is the effect of under-secretion (deficiency) of hormones?
A) Enhanced muscle strength
B) Improved cognitive function
C) Accelerated wound healing
D) Reduced growth rate
  • 34. Where are plant hormones primarily located?
A) Stem
B) Leaves
C) Flowers
D) Roots
  • 35. What are the functions of plant hormones?
A) Photosynthesis
B) Reproduction of plants
C) Formation of seeds
D) Regulation of plant growth and development
  • 36. What is a modern application of auxin in crop harvesting?
A) Disease prevention
B) Soil fertilization
C) Pest control
D) Weed control
  • 37. Which components make up the central nervous system?
A) Heart and lungs
B) Brain and spinal cord
C) Stomach and intestines
D) Liver and kidneys
  • 38. What is the structure and function of the spinal cord?
A) Communication between the brain and body
B) Production of hormones
C) Oxygen exchange in the lungs
D) Digestion and absorption of nutrients
  • 39. Which of the following is a component of the brain?
A) Nephrons
B) Alveoli
C) Neurons
D) Red blood cells
  • 40. What are the functions of the central nervous system?
A) Maintenance of body temperature
B) Regulation of hormone production
C) Control of voluntary and involuntary body movements
D) Digestion of food
  • 41. What are the differences between hormonal and neuronal coordination?
A) Hormonal coordination occurs only in plants, while neuronal coordination occurs only in animals.
B) Neuronal coordination relies on electrical impulses, while hormonal coordination relies on chemical signals.
C) Neuronal coordination involves the release of hormones.
D) Hormonal coordination is slower but more precise than neuronal coordination.
  • 42. What is the somatic nervous system responsible for?
A) Regulating hormone production
B) Controlling involuntary body functions
C) Coordinating voluntary movements
D) Maintaining body temperature
  • 43. What is the autonomic nervous system primarily involved in?
A) Processing sensory information
B) Controlling skeletal muscles
C) Conscious decision-making
D) Regulating internal body functions
  • 44. What is the structure and function of neurons?
A) Neurons control voluntary muscle movements.
B) Neurons produce hormones that regulate body functions.
C) Neurons are found only in the brain and spinal cord.
D) Neurons are specialized cells that transmit electrical impulses.
  • 45. How are neurons classified?
A) Based on their location in the body
B) Based on their ability to produce hormones
C) Based on the direction of nerve impulse transmission
D) Based on their size
  • 46. How are nervous impulses transmitted between neurons?
A) Through the digestive system
B) Through the bloodstream
C) Through hormonal secretions
D) Through electrical signals
  • 47. What is the pathway and action of a nerve impulse known as?
A) Synaptic transmission
B) Reflex arc
C) Nervous system loop
D) Neuronal feedback
  • 48. How is a conditional reflex characterized?
A) An automatic response to pain or danger
B) A reflex that occurs only in the presence of hormones
C) An involuntary response to a specific stimulus that has been learned
D) A voluntary action performed without conscious thought
  • 49. What is the role of conditional reflexes in behavior?
A) Coordinating voluntary muscle movements
B) Regulating hormone production
C) Shaping and modifying learned behaviors
D) Controlling involuntary body functions
  • 50. Which of the following is an example of a conditional reflex?
A) Withdrawing a hand from a hot surface
B) Regulating body temperature through shivering
C) Blinking in response to a bright light
D) Salivating at the smell of food
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