An organism that operates at the cellular level of organization, carries out its physiological activities by using its
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2010
(a) Explain the term adaptation in relation to the mode of life of an organism.(b) Explain how each of the following structures adapt the organisms that possess them to their modes of life:
(i) succulent leaves in Aloe s…
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2010
(a)(i) What is placentation?
(ii) Name two organs associated with the human placenta.(b) State five functions of the human placenta.(c) Write short notes on the following:
(i) viviparity
(ii) territoriality
(iii) season…
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2010
(a) List four characteristics which can be genetically transmitted in humans.(b)(i) Name two sites each in plants and animals where meiosis occurs.
(ii) State two differences between meiosis and mitosis(c) A woman with…
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2010
(a) Write short notes on each of the following:
(i) ecological niche
(ii) population density
(iii) climax continually(b) Describe briefly the interactions between abiotic and biotic components of an ecosystem.
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2010
(a)(i) Name two types of germination of seeds giving one example of each type.
(ii) Describe a simple experiment to demonstrate that oxygen, water and warmth are necessary for germination of seeds.(b) State two distingui…
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2010
(a) Write the chemical equation for each of the following processes:
(i) aerobic respiration
(ii) anaerobic respiration in plants
(iii) anaerobic respiration in animals.(b) State four functions which the liver of a pa…
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2010
Muscles are attached to bones by means of
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2010
Which of the following animals exhibits territoriality?
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2010
Which if the following organisms is not classified as an animal?
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2010
Which of the following processes involves diffusion?
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2010
Which of the following characteristics do fungi share in common with animals?
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2010
A typical plant cell is mainly distinguished from an animal cell by the possession of
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2010
Which of the following cell types has the least number of mitochondria?
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2010
The organelle which eliminates water from the body of a protozoan is the
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2010
The inorganic components of bone consist of
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2010
The axial skeleton is composed of the
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2010
Excretion in Paramecium sp. is by diffusion because
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2010
In cellular respiration energy is made available to organisms by
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2010
The mechanism of opening and closing of stomata in plants is based on