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How does sunken stomata help in lowering transpiration.
Date posted:
September 20, 2018
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Name the vitamin which plays an important role in the formation of blood cells.
Date posted:
September 20, 2018
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Give two better ways of measuring the rate of photosynthesis other than counting bubbles produced per minute.
Date posted:
September 20, 2018
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Bivalent, synapsis and crossing over are terminologies used in cell division.
a)Name the stage of meiosis in which the above process occur.
b)Distinguish between synapsis and crossing over.
Date posted:
September 20, 2018
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Explain why a baby loses more heat per weight than an adult when exposed to the same environmental conditions?
Date posted:
September 20, 2018
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How does the heart increase blood flow to some parts of the body during strenuous exercise.State two ways.
Date posted:
September 20, 2018
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Outline five mechanisms of excretion in terrestrial green plants
Date posted:
September 20, 2018
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State the importance of the following features of a mammalian lungs
i)Pleural fluid
ii)Spongy and elastic
Date posted:
September 20, 2018
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Name the carbohydrates stored in:
a)Mammalian liver
b)Potato tuber
Date posted:
September 20, 2018
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Name the cell organelle in which carbon (IV) oxide combines with water to form complex organic compounds.
Date posted:
September 19, 2018
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Name the causal organism of syphilis.
Date posted:
September 19, 2018
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It is possible to contract amoebic dysentery as a result of close contact with an infected person. Similar contact with malaria victim cannot result into infection. Explain.
Date posted:
September 19, 2018
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What is meant by the term Epigynous ovary?
Date posted:
September 19, 2018
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What is the main significance of getting rid of lactic acid as one of the end products of anaerobic respiration in animals.
Date posted:
September 19, 2018
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Not all the energy from one trophic level is available to the next level. Explain.
Date posted:
September 19, 2018
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How does the body act to conserve water content and also reduce its osmotic pressure when water intake is low? Explain.
Date posted:
September 19, 2018
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State three roles of green plants in fish ponds other than providing food
Date posted:
September 19, 2018
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Name the part of the eye where image is formed
Date posted:
September 19, 2018
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State the difference between Ball and socket and Hinge joint.
Date posted:
September 19, 2018
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In a biology experiment, the pituitary gland of a rat was removed. State the effect that will have on the quality of urine produced by the rat and give a reason.
Date posted:
September 19, 2018
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To ensure that osmotic pressure of the body fluids is maintained constant.
Date posted:
September 19, 2018
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Explain the observation made in a plant shoot observed to have curved towards unilateral light source.
Date posted:
September 19, 2018
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Mention two parts of mammalian skeleton.
Date posted:
September 10, 2018
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Differentiate between vascular cambium and cork cambium.
Date posted:
September 8, 2018
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Explain tropic responses in plants and their survival.
Date posted:
September 5, 2018
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Describe how a buffer solution is formed.
Date posted:
September 3, 2018
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List any eight symptoms of fish bacterial disease attack
Date posted:
August 27, 2018
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State the difference between Lamarckian and Darwinian theories of evolution.
Date posted:
August 27, 2018
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Give a reason why new born babies have yellow colour.
Date posted:
August 25, 2018
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Describe a process that result in feces having brown colour.
Date posted:
August 25, 2018