Question

6.
(ii) Name the process of breathing out air from the body.
(111) What does gastric juice contain?
(1) Write any two differences between respiration and photosynthesis.
(1) In which form oxygen is carried by haemoglobin to the cells?​

Answer 1

Answer:

. In multicellular organisms all the cells may not be in direct contact with the surrounding environment. Hence diffusion will not meet all the requirements of all the cells.