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