Solution :
The following are the methods that plants use to eliminate excretory products:
(i) Stomata are the openings through which oxygen, the product of photosynthesis, is expelled.
(ii) Stomata are the openings via which carbon dioxide created during respiration is expelled.
(iii) Through transpiration, extra water is removed.
(iv) When plants lose some parts, like leaves, other wastes are also lost in addition to dead cells.
(v) Cellular vacuoles are where some waste materials are kept.
(vi) Particularly in the aged xylem, some waste materials are retained as resins and gums.
(vii) In addition, plants release some waste products into the soil surrounding them.
(viii)Petals, fruits, and seeds can also be used to get rid of some waste materials.
