What role does the respiratory system play in humans?
The respiratory system is a collection of organs working together in order to oxygenate the blood and remove the waste product carbon dioxide. The respiratory system uses a method of gaseous exchange in the lungs whereby inhaled oxygen moves from an area of high concentration (lungs) to an area of low concentration (blood).
KM
Related Biology GCSE answers
All answers ▸TMV can cause plants to produce less chlorophyll. This causes leaf discoloration. Explain why plants with TMV have stunted growth.
What does osmosis mean and what does the movement of water do to cells?
Discuss the advantages and disadvantages of asexual reproductions (4 marks)
How does a syanpse work?