AIC SS 2 Biology Exam for 3rd Term 23/24
  • 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) Eutrophication
B) Etrophication
C) Eutropication
D) Eutriphication
  • 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) Bowman's capsule
B) Henle's loop
C) Distal tubule
D) Urethra
  • 5. Effects of food shortage on the size of a population include the following except.......
A) Emigration
B) Competition
C) Decline in the rate of reproduction
D) Increased supply of a particular type of food
  • 6. Abiotic factors affecting a population include the following except......
A) Water
B) Heat
C) Space
D) Parasites
  • 7. The following are biotic factors affecting a population except......
A) Mortality
B) Light
C) Food
D) Competition
  • 8. A factor which limits the population growth is called .......
A) Limiting factor
B) Environmental resistance
C) Dispersal
D) Balance in nature
  • 9. One of the following is not an importance of family planning to a nation.
A) Promotion of maternal and mother's health
B) Prevention of indiscriminate abortion
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) Ribosome
C) Endoplasmic reticulum
D) Cytoplasm
  • 11. The maintenance of a fairly constant internal environment in an organism is known as .........
A) Osmotic pressure balance
B) Neutralisation
C) Homeostasis
D) Concentration gradient
  • 12. The following are the characteristics of leucocytes except -------
A) Amoeboid in shape
B) Colourless
C) Concave and circular
D) Nucleated
  • 13. 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
  • 14. Pulmonary artery is the blood vessel connected to -------------.
A) Left ventricle
B) Right auricle
C) Right ventricle
D) Left auricle
  • 15. 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
  • 16. Which of the following is a disease of the kidney?
A) Influenza
B) Arthritis
C) Diabetes
D) Asthma
  • 17. What are the effects of kidney diseases on the body?
A) Improved digestion
B) Enhanced vision
C) Increased blood pressure
D) Strengthened immune system
  • 18. Which of the following is a remedy for the effects of kidney diseases?
A) Dialysis
B) Chemotherapy
C) Antibiotics
D) Physical exercise
  • 19. What are the functions of the liver?
A) Detoxification of harmful substances
B) Regulation of body temperature
C) Production of red blood cells
D) Protection of the lungs
  • 20. Which of the following is a disease of the liver?
A) Cirrhosis
B) Malaria
C) Osteoporosis
D) Pneumonia
  • 21. What are the effects of liver diseases on the body?
A) Improved memory
B) Impaired digestion
C) Increased muscle strength
D) Accelerated wound healing
  • 22. Which of the following is a remedy for the effects of liver diseases?
A) Liver transplantation
B) Vitamin supplements
C) Meditation
D) Physical therapy
  • 23. What is the structure and function of the mammalian skin?
A) Digestion and absorption
B) Muscle contraction and relaxation
C) Vision and hearing
D) Protection and temperature regulation
  • 24. Where are the hormonal glands located?
A) Endocrine system
B) Stomach
C) Pancreas
D) Lungs
  • 25. What is the function of hormones?
A) Regulation of body functions
B) Production of energy
C) Transmission of nerve impulses
D) Strengthening of bones
  • 26. What is the effect of over-secretion of hormones?
A) Decreased heart rate
B) Increased blood pressure
C) Weight loss
D) Weakened immune system
  • 27. What is the effect of under-secretion (deficiency) of hormones?
A) Enhanced muscle strength
B) Accelerated wound healing
C) Improved cognitive function
D) Reduced growth rate
  • 28. Which of the following is a type of blood vessel that carries oxygenated blood away from the heart?
A) Pulmonary artery
B) Vein
C) Artery
D) Capillary
  • 29. What is the main difference between an artery and a vein?
A) Arteries carry deoxygenated blood, while veins carry oxygenated blood
B) Veins are smaller than arteries
C) Arteries are smaller than veins
D) Arteries carry oxygenated blood, while veins carry deoxygenated blood
  • 30. Which of the following is a type of circulation that involves blood flowing from the heart to the gills and then to the rest of the body?
A) Open circulation
B) Closed circulation
C) Single circulation
D) Double circulation
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