Edexcel IGCSE Biology 3.13 Oestrogen and Testosterone Roles Questions

Practise sex hormone roles by reading puberty hormone graphs and linking oestrogen or testosterone to secondary sexual characteristics.

Exam points

Interpret hormone graphs to distinguish male and female puberty patterns.
Link oestrogen or testosterone increases to secondary sexual characteristic development.

[Maximum number: 1]

Animals produce hormones to communicate between cells.

Which hormone causes the development of secondary sexual characteristics in girls?

adrenaline

oestrogen

progesterone

testosterone

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