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