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Explain the Ways in which erect posture is maintained in a Weak herbaceous stem
Date posted:
March 14, 2019
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State two differences between biceps and muscles of the intestines.
Date posted:
March 12, 2019
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State three ways in which Ascaris lumbricoides is adapted to living in its habitat.
Date posted:
March 12, 2019
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Explain the various ways in which a typical cell is adapted to its functions
Date posted:
March 12, 2019
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The population of fish in a pond was estimated using capture-recapture method.
(i)What equipment was used?
(ii)Describe the procedure used in the experiment.
(iii)State the formula for calculating the total population of fish in the pond.
Date posted:
March 10, 2019
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(a)State the method of dispersal for each of the following:
(i)Orange.
(ii)Sonchus.
(iii)Coconut.
(b)Name the agent of dispersal for each of the following fruits:
(i)Orange.
(ii)Coconut.
(c)Name a seed dispersed by:
(i)Wind.
(ii)Censor mechanism.
Date posted:
March 2, 2019
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Explain why several lateral buds sprout when the terminal bud in a young tree is cut off.
Date posted:
March 2, 2019
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What are the Economic importance of protoctista?
Date posted:
February 28, 2019
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Explain how predators are adapted to capture their prey
Date posted:
February 18, 2019
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Explain why xylem vessels have dead cells
Date posted:
February 18, 2019
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In an experiment, a piece of brain was removed from a rat. It was later found that the rat had large fluctuation of body temperature. Suggest the part of brain which had been removed.
Date posted:
February 15, 2019
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Explain why adenine and thymine have double bond while cytosine and guanine have triple bond.
Date posted:
January 20, 2019
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Give two importance of respiratory quotient.
Date posted:
January 6, 2019
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Name two classes of phylum arthropoda with cephalothorax
Date posted:
December 26, 2018
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State the economic importance of members of Monera and Fungi and for each economic importance name a suitable or appropriate organism
Date posted:
December 6, 2018
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Discuss Lamarck’s and Darwin’s theories of evolution
Date posted:
December 4, 2018
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Which organelle is most abundant in white blood cell?
Date posted:
November 13, 2018
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Explain how mammals regulate their body temperature and relate this to their body size
Date posted:
November 7, 2018
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What are the limitations of dry mass measurement in assessing growth?
Date posted:
October 21, 2018
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Why is change in dry mass measurement of an organism the best indicator of growth?
Date posted:
October 21, 2018
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Explain why short distance runners breathe quickly and deeply at the end of a race.
Date posted:
October 13, 2018
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Draw a labeled diagram of mammalian nephron.
Date posted:
October 10, 2018
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Draw and label a mammalian skin.
Date posted:
October 10, 2018
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(i)Draw and label a mitochondrion. (ii) State the most important function of mitochondria.iii) Give the functions of the labeled parts.
Date posted:
October 10, 2018
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Describe the general layout of the transport system in mammals
Date posted:
October 9, 2018
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Explain how drooping of leaves on a hot sunny day is advantageous to a plant.
Date posted:
October 9, 2018
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Compare the internal structure of a monocotyledonous and dicotyledonous stem.
Date posted:
October 9, 2018
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How is a desert camel adapted to survive in the desert conditions?
Date posted:
October 9, 2018
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Account for the loss in dry weight of cotyledons in a germinating bean seed.
Date posted:
October 8, 2018
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Draw an intermittent curve and explain the various stages
Date posted:
October 8, 2018