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Draw a sigmoid growth curve and explain its different phases/stages
Date posted:
October 8, 2018
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Draw and label the human male reproductive system
Date posted:
October 5, 2018
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What are dehiscent fruits?
Date posted:
October 5, 2018
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Give the types of juicy fruits with aid of diagrams.
Date posted:
October 5, 2018
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Explain the following types of placentation
Marginal
Date posted:
October 5, 2018
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Draw a labeled diagram of a fruit
Date posted:
October 5, 2018
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Draw a longitudinal section of a labeled diagram of a flower
Date posted:
October 5, 2018
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Describe how energy flows from the sun through the various trophic levels in an ecosystem.
Date posted:
October 5, 2018
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State the economic importance of insects
Date posted:
October 5, 2018
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Name the factors Affecting the Rate of Osmosis.
Date posted:
October 1, 2018
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Name the physiological Processes of the Cell membrane .
Date posted:
October 1, 2018
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What is the function of fine adjustment knob microscope?
Date posted:
October 1, 2018
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A millipede, grasshopper and crayfish all belong to Phylum Arthropoda. Mention four major characteristics that they have in common.
Date posted:
September 21, 2018
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People can die when they inhale gases from burning charcoal in poorly ventilated rooms. What compound is formed in the human body that leads to such death?
Date posted:
September 21, 2018
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Euglena is positively phototactic. Of what significance is this characteristic?
Date posted:
September 21, 2018
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Name the organelle that is likely to be found in abundance in;
a)An enzyme secreting cell
b)cells producing lipid related secretions
c)Areas where the cells have raptured
Date posted:
September 21, 2018
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State the main significance of short food chains in an ecosystem.
Date posted:
September 21, 2018
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State the most suitable biological tool for collecting the following organisms
i)Ants from a tree trunk.
ii)A moth from a coffee farm.
Date posted:
September 20, 2018
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How does sunken stomata help in lowering transpiration.
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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Outline five mechanisms of excretion in terrestrial green plants
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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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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State three roles of green plants in fish ponds other than providing food
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 tropic responses in plants and their survival.
Date posted:
September 5, 2018
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(a) Name the cycle under which ammonia undergo to form urea
(b)Name the enzyme that regulate the reaction
Date posted:
August 25, 2018
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Identity the source of urea that is removed via kidney in a healthy person.
Date posted:
August 25, 2018