Key term for OCR GCSE Biology A, used in The endocrine system.
A thick fluid produced at the entrance of the uterus that acts as a barrier to sperm.
Cervical mucus appears in OCR GCSE Biology A revision content for Organism level systems, especially The endocrine system and Contraception.
Create a free account to access OCR GCSE Biology A revision notes, track progress, and practise related key terms.
