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How is a fish gill adapted to its function?
Date posted:
October 5, 2017
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Explain stomatal distribution in plants of different habitats
Date posted:
October 5, 2017
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Describe the process of gaseous exchange in terrestrial plants.
Date posted:
October 5, 2017
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State the ways in which leaves of plants are adapted to gaseous exchange
Date posted:
October 5, 2017
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What is the advantage of having stomata open during daytime and having them closed at night?
Date posted:
October 5, 2017
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Describe the mechanism of opening and closing of stomata
Date posted:
October 5, 2017
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Why is gaseous exchange important to organisms?
Date posted:
October 5, 2017
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Name a protein, vitamin, an enzyme and a mineral element involved in blood clotting
Date posted:
October 5, 2017
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Explain how oxygen and carbon Iv oxide are transported in the blood
Date posted:
October 5, 2017
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Describe how mammalian blood components carry out their functions
a.Plasma
b.Red blood cells(Erythrocytes)
c. White blood cells(Leucocytes)
d. Blood platelets(Thrombocytes)
Date posted:
October 4, 2017
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Give the reasons why pressure of blood is greater in the arteries than in the veins of mammals.
Date posted:
October 4, 2017
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State the ways in which the composition of blood in the pulmonary arterioles differs from that in the pulmonary venules
Date posted:
October 4, 2017
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Explain why blood leaving the lungs may not be fully oxygenated
Date posted:
October 4, 2017
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Explain how the mammalian heart is adapted to performing its functions
Date posted:
October 4, 2017
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Describe the structure and function of the mammalian heart
Date posted:
October 4, 2017
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What are the advantages of the closed circulatory system over open circulatory system?
Date posted:
October 4, 2017
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Explain how aquatic and terrestrial plants are adapted to deal with problems of transpiration
a. Mesophytes
b.Xerophytes
c.Hydrophytes
Date posted:
October 4, 2017
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Name the sites through which transpiration takes place in a plant
Date posted:
October 4, 2017
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State two physiological changes that take place in the human skin in order to
facilitate heat gain in the body.
Date posted:
September 25, 2017
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Explain what would happen to onion epidermal cells if they were placed in distilled water
Date posted:
September 25, 2017
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Describe the role of the following organs in excretion and homeostasis: the liver, the skin during hot environmental conditions.
Date posted:
September 20, 2017
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Using a microscope, a student counted 55 cells across a field of view whose diameter was 6000µm. Calculate the average length of the cells
Date posted:
September 20, 2017
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Why is a burning charcoal stove in a poorly ventilated room likely to cause death of the inhabitants?
Date posted:
September 20, 2017
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State the adaptations of plants which enable them to reduce water loss
Date posted:
September 18, 2017
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Explain the environmental factors that affect rate of transpiration in plants
Date posted:
September 18, 2017
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Explain the structural factors that affect the rate of transpiration in plants
Date posted:
September 18, 2017
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Explain the forces that make water and mineral salts move through a plant
Date posted:
September 18, 2017
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Describe the movement of water from the soil to the leaves of a tall plant
Date posted:
September 18, 2017
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Describe briefly the process of photosynthesis in plants.
Date posted:
September 15, 2017
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Differentiate the various modes of feeding
Date posted:
September 15, 2017