February 2025

The structure of the leaf and photosynthesis

By |2025-02-12T08:56:55+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

The external structure of the leaf. Image credit passmyexams.co.uk The external structure of the leaf. Image credit passmyexams.co.uk ZIMSEC O Level Combined Science Notes: The structure of the leaf and photosynthesis

  • The leaves are the main organs of photosynthesis.
  • Their structure is adopted for the process of photosynthesis.
  • Veins-vein networks support the physical structure […]
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The enzyme amylase

By |2025-02-12T09:29:26+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

Starch food. Image credit eurofins.com Starch food. Image credit eurofins.com ZIMSEC O Level Combined Science Notes: The enzyme amylase

  • Energy in cells is obtained by breaking down food molecules during the respiration process.
  • The chemical reactions involved are carried out by enzymes.
  • Enzyme molecules also break down food molecules in the digestive system and […]
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Preparing a Trial Balance

By |2025-02-12T09:06:24+02:00February 12th, 2025|Notes, Ordinary Level Notes, Principles of Accounts Notes|

ZIMSEC O Level Principles of Accounts Notes: Preparing a Trial Balance

  • As already said a trial balance is extracted from the ledger accounts by listing all the credit and debit balances that are in the entity’s books at the end of each trading period.
  • The following steps are involved in the extraction and preparation of a trial balance:
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    Rozvi Government Officials

    By |2025-02-12T09:04:39+02:00February 12th, 2025|Notes, O Level History Notes, Ordinary Level Notes|

    A modern day spirit medium. Image credit blogspot.com A modern day spirit medium. Image credit blogspot.com ZIMSEC O Level History Notes: The Rozvi State: Rozvi Government Officials

    The following stations were found in the Rozvi kingdom/state.

    • The mambo who was the King
    • The provincial chiefs
    • The District chiefs
    • Headmen
    • Village heads
    • The Queen mother
    • Tumbare
    • Spirit mediums
    • The King’s son in law

    To access […]

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    Sea Transport

    By |2025-02-12T09:32:45+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

    An ocean bulk cariar. Image credit malaquaylogistics.com An ocean bulk carrier. Image credit malaquaylogistics.com ZIMSEC O Level Geography Notes: Transport: Sea Transport

    Advantages

    • Is relatively cheaper.
    • Caries bulky goods at once
    • They are very comfortable for example cruise ships and ocean liners are often fitted with luxury facilities such as bathrooms, toilets, casinos and […]
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    The concentric model/Burgess’s model (1924)

    By |2025-02-12T08:59:41+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

    The Concentric Model. Image credit edublogs.org The Concentric Model. Image credit edublogs.org ZIMSEC O Level Geography Notes: Settlements: The concentric model/Burgess’s model (1924)

    • This is known alternatively as the concentric model, the ring model for urban land use or Burgess’ model.
    • It was formulated by Burgess and Park in 1924 after their […]
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    Stakeholders of the Business

    By |2025-02-12T09:15:58+02:00February 12th, 2025|Notes, O Level Business Studies Notes, Ordinary Level Notes, Principles of Accounts Notes|

    Every business has several stakeholders Every business has several stakeholders. Image credit modernservantleader.com ZIMSEC O Level Business Studies Notes: Stakeholders of the Business

    • Many people are involved in running a business.
    • Some have direct interest while others have indirect interest in the running of the business.
    • These individuals or groups are known as […]
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    Possible solutions to Urbanisation problems

    By |2025-02-12T09:44:46+02:00February 12th, 2025|Notes, O Level Geography, Ordinary Level Notes|

    Murambinda Growth Point. Image credit newsday.co.zw Murambinda Growth Point. Image credit newsday.co.zw ZIMSEC O Level Geography Notes: Settlements:Possible solutions to Urbanisation problems

    • Most LEDCs such as Zimbabwe struggle with urbanisation problems
    • This is because most countries cannot cope with the rapid rate of urbanisation
    • as the rate of industrialization and economic growth is […]
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