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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Sexual reproduction in humans

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3

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Sexual reproduction in humans

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Paper 3Theory (Core)3 marks

The menstrual cycle is essential for reproduction.

Description

Uterine Lining Changes

The uterine lining undergoes significant changes throughout the menstrual cycle, preparing for potential implantation of a fertilized egg.

  1. a

    Explain the changes that occur in the uterine lining during the menstrual cycle.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Sexual reproduction in humans

Paper 3Theory (Core)3 marks

Description

Phases of the Menstrual Cycle

The menstrual cycle consists of four main phases: the follicular phase, ovulation, the luteal phase, and menstruation. Each phase is characterized by specific changes in the ovaries and the uterine lining.

  1. a

    Describe the changes that occur in the ovaries during the menstrual cycle.

    Aim for approximately 3 distinct marking points.

    [3]