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