Where is oestrogen produced?
Ovaries.
MM
Related Biology GCSE answers
All answers ▸What is ventilation of the lungs and how does it occur?
How are capillaries adapted for their function within the body?
How are nutrients absorbed into the circulatory system in the small intestine?
A scientist is researching the effect of an energy drink on a group of twenty men. State two characteristics of the sample which may influence the results.