Body systems

Part of Biology (Single Science)

  • Body systems

    • Osmosis and plant transport

      Osmosis is the diffusion of water molecules from a dilute solution to a more concentrated solution across a selectively permeable membrane.

    • The circulatory system

      Blood is pumped away from the heart at high pressure in arteries, and returns to the heart at low pressure in veins.

    • Reproduction, fertility and contraception

      Sexual reproduction involves the joining of two sex cells (gametes) – the sperm (male gamete) and the egg/ovum (female gamete).

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