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) Neptunic 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) Eutropication
B) Eutrophication
C) Eutriphication
D) Etrophication
  • 3. The following are the processes involved in the formation of urine except.......
A) Selective reabsorption
B) Ultra filteration
C) Hormonal secretion
D) Glomerulus in the bowman's capsule
  • 4. Selective reabsorption occurs in one of the following.
A) Urethra
B) Henle's loop
C) Distal tubule
D) Bowman's capsule
  • 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) Emigration
D) Increased supply of a particular type of food
  • 6. Abiotic factors affecting a population include the following except......
A) Water
B) Parasites
C) Heat
D) Space
  • 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) Environmental resistance
B) Balance in nature
C) Limiting factor
D) Dispersal
  • 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) Endoplasmic reticulum
B) Contractile vacuole
C) Ribosome
D) Cytoplasm
  • 11. The maintenance of a fairly constant internal environment in an organism is known as .........
A) Homeostasis
B) Neutralisation
C) Osmotic pressure balance
D) Concentration gradient
  • 12. One of the following secrets synovial fluid which acts as a shock absorber.
A) Cartilage
B) Synovial fluid
C) Synovial membrane
D) Synovial cavity
  • 13. ------------- joint allows movement in almost all directions
A) Gliding
B) Ball and socket
C) Pivot
D) Hinge
  • 14. Muscles are attached to bones by means of strong whitish cord called ----------
A) Tendons
B) Cartilage
C) Tonsil
D) Ligament
  • 15. One of the following is not a sucking mouth part of animals exhibiting a sucking mechanism
A) Probosics
B) Stylet
C) Scolex
D) Labella
  • 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) Amoeboid in shape
C) Colourless
D) Nucleated
  • 18. One of the following is not peculiar to the red blood cell
A) Microscopic
B) Circular and concave
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) Labrum
B) Probosics
C) Mandibles
D) Maxillae
E) Labium
  • 20. Pulmonary artery is the blood vessel connected to -------------.
A) Left ventricle
B) Right ventricle
C) Right auricle
D) Left auricle
  • 21. What is the main function of the kidney?
A) Production of hormones
B) Digestion of food
C) Filtration of blood
D) Regulation of body temperature
  • 22. Which of the following is a disease of the kidney?
A) Arthritis
B) Diabetes
C) Influenza
D) Asthma
  • 23. What are the effects of kidney diseases on the body?
A) Improved digestion
B) Increased blood pressure
C) Enhanced vision
D) Strengthened immune system
  • 24. Which of the following is a remedy for the effects of kidney diseases?
A) Chemotherapy
B) Antibiotics
C) Dialysis
D) Physical exercise
  • 25. What are the functions of the liver?
A) Detoxification of harmful substances
B) Protection of the lungs
C) Regulation of body temperature
D) Production of red blood cells
  • 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) Impaired digestion
B) Accelerated wound healing
C) Improved memory
D) Increased muscle strength
  • 28. Which of the following is a remedy for the effects of liver diseases?
A) Liver transplantation
B) Vitamin supplements
C) Meditation
D) Physical therapy
  • 29. What is the structure and function of the mammalian skin?
A) Muscle contraction and relaxation
B) Protection and temperature regulation
C) Vision and hearing
D) Digestion and absorption
  • 30. Where are the hormonal glands located?
A) Stomach
B) Endocrine system
C) Lungs
D) Pancreas
  • 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) Decreased heart rate
B) Weight loss
C) Increased blood pressure
D) Weakened immune system
  • 33. What is the effect of under-secretion (deficiency) of hormones?
A) Accelerated wound healing
B) Enhanced muscle strength
C) Improved cognitive function
D) Reduced growth rate
  • 34. Where are plant hormones primarily located?
A) Flowers
B) Stem
C) Roots
D) Leaves
  • 35. What are the functions of plant hormones?
A) Reproduction of plants
B) Regulation of plant growth and development
C) Photosynthesis
D) Formation of seeds
  • 36. What is a modern application of auxin in crop harvesting?
A) Disease prevention
B) Soil fertilization
C) Weed control
D) Pest control
  • 37. Which components make up the central nervous system?
A) Heart and lungs
B) Brain and spinal cord
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) Digestion and absorption of nutrients
C) Production of hormones
D) Communication between the brain and body
  • 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) Regulation of hormone production
B) Maintenance of body temperature
C) Control of voluntary and involuntary body movements
D) Digestion of food
  • 41. What are the differences between hormonal and neuronal coordination?
A) Neuronal coordination involves the release of hormones.
B) Hormonal coordination occurs only in plants, while neuronal coordination occurs only in animals.
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) Controlling skeletal muscles
C) Conscious decision-making
D) Regulating internal body functions
  • 44. What is the structure and function of neurons?
A) Neurons produce hormones that regulate body functions.
B) Neurons control voluntary muscle movements.
C) Neurons are specialized cells that transmit electrical impulses.
D) Neurons are found only in the brain and spinal cord.
  • 45. How are neurons classified?
A) Based on their size
B) Based on the direction of nerve impulse transmission
C) Based on their ability to produce hormones
D) Based on their location in the body
  • 46. How are nervous impulses transmitted between neurons?
A) Through the digestive system
B) Through electrical signals
C) Through hormonal secretions
D) Through the bloodstream
  • 47. What is the pathway and action of a nerve impulse known as?
A) Reflex arc
B) Synaptic transmission
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 reflex that occurs only in the presence of hormones
C) A voluntary action performed without conscious thought
D) An automatic response to pain or danger
  • 49. What is the role of conditional reflexes in behavior?
A) Coordinating voluntary muscle movements
B) Shaping and modifying learned behaviors
C) Regulating hormone production
D) Controlling involuntary body functions
  • 50. Which of the following is an example of a conditional reflex?
A) Blinking in response to a bright light
B) Regulating body temperature through shivering
C) Withdrawing a hand from a hot surface
D) Salivating at the smell of food
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