Biology 5090 · O Level · Sexual reproduction in humans

Sexual reproduction in humans — practice question

After sexual intercourse in humans, fertilisation can happen.
(a)[4]

Describe how fertilisation occurs and how a ball of cells develops in the early stages.

(b)[6]

Describe how a developing fetus takes in and uses the named substances it requires, and how it gets rid of the named waste products.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “gametes: egg cells and sperm cells” …

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI