Body systems

Body systems
- Co-ordination and control (CCEA)
  The brain and spinal cord form the central nervous system (CNS). The CNS controls and coordinates responses between receptors and effectors.
- Reproduction, fertility and contraception (CCEA)
  Most animals carry out sexual reproduction. Sexual reproduction involves the joining of two sex cells (gametes) – the sperm (male gamete) and the egg/ovum (female gamete).

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