general questions Flashcards
1
Q
explain how the human lungs are adapted for efficient exchange of gases by diffusion (4 marks)
A
- Contain many alveoli, contain thin capillaries, rich blood supply, oxygen inwards and carbon dioxide outwards
2
Q
what is the function of the eppidermis
A
lets sunlight through to photosynthesising parts of the leaf
3
Q
A
