What this topic covers
B3: Organism level systems has 3 subtopics:
- B3.1 Coordination and control - the nervous system
- B3.2 Coordination and control - the endocrine system
- B3.3 Maintaining internal environments
GCSE OCR Foundation Combined Science Biology
B3: Organism level systems – GCSE OCR Foundation Combined Science Biology revision notes
Revise B3: Organism level systems for GCSE OCR Foundation Combined Science Biology, including B3.1 Coordination and control - the nervous system.
Nervous control, endocrine control and homeostasis. 14 lessons in 3 subtopics.
14
Lessons
3
Subtopics
B3: Organism level systems lessons by subtopic
14 lessons, grouped by subtopic.
B3.1 Coordination and control - the nervous system
B3.2 Coordination and control - the endocrine system
- Introduction to the Endocrine System
- Major Endocrine Glands and Their Locations
- Male and Female Reproductive Hormones
- The Menstrual Cycle
- Hormonal methods of contraception
- Non-hormonal methods of contraception
- Evaluating contraceptive methods
B3.3 Maintaining internal environments
More in this course
Go back to the full GCSE OCR Foundation Combined Science Biology topic list, or practise this topic with past-paper questions.
Frequently asked questions
Is this the right B3: Organism level systems page for my course?
These notes are for GCSE OCR Foundation Combined Science Biology. If you are on a different exam board or tier, choose your course from the Combined Science Biology page instead, because the content is not always the same.
What should I do after reading the lessons?
Test yourself without the notes open, then try past-paper questions on the same topic. The questions you get wrong tell you which lesson to go back to.