Two pages on where the energy in the ocean comes from and where it goes.
Nutrients, respiration and photosynthesis
You need three things before you can explain how a marine ecosystem is powered: what a nutrient actually is, how to prove which nutrients a food contains, and what each n...
8 questions · 29 marks
Revise this topicFeeding relationships and energy flow
Energy enters every marine food chain as sunlight captured by a producer, and it is then passed from organism to organism through food chains and webs, losing most of its...
8 questions · 27 marks
Revise this topic