Explain continental drift as an evidence of evolution

  • current continents existed as one large land mass/Pangea/Eurasia / Gond wana Land
  • The present continents drifted leading to isolation oforganism
  • Organism in each continent evolved along different lines
  • hence emergence of new species
  • What name is given to the process whereby :
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  • What is meant by the terms test-cross?
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  • What is meant by the term allele?
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  • What do you understand by the term cell specialization as used in biology
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  • The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours .Its was observed that the distilled water was coloured purple.
    The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours .Its was observed that the distilled water was coloured purple. … Read more
  • The figure below represents a plant
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  • The equation below represents a process that takes place in plants.
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  • The diagram below shows the position of an image formed in a defective eye
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  • The diagram below represents the lower jaw of a mammal
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  • The cells shown below were obtained from two different plant cells which were immersed in 25% and 2% salt solution.
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  • State two roles of green plants in fish ponds other than providing food
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  • State two properties of monosaccharide
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  • State three factors that affect the rate of diffusion
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  • State the kingdoms to which the following organisms belong
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  • State the functions of the following parts of a light microscope.
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  • State the functions of ribosomes and Golgi apparatus
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